Gre · Prep Guide
Read this first
This is not a 3,000-word dump. It is the high-frequency core, tiered so you learn the words that appear most first. Each entry gives a definition, synonyms, and the trap that makes it dangerous. Study in context, review on a schedule, and drill the practice set to see the words in real GRE sentences.
How this list is built
The words are the test
More than any other admissions exam, the GRE is vocabulary-defined. You cannot reason your way to a word you do not know. The highest-leverage move is a tiered, high-frequency list learned in context — with special attention to the two traps that cost the most points: second meanings (an easy word in a hard sense) and lookalike confusions (adverse vs averse).
Tier 1 — the essentials
| Word | Meaning · synonyms · trap |
|---|---|
| arrest verb | to bring to a stop; to halt or check the progress of something ≈ halt, check, stall ✗ second-meaning: GRE almost never uses arrest to mean 'take into police custody'; the tested sense is 'to stop or halt.' A related sense, 'arresting,' means strikingly attention-grabbing. |
| qualify verb | to limit, restrict, or soften the force of a statement ≈ limit, temper, modify ✗ second-meaning: The everyday sense 'be eligible' misleads you; on the GRE qualify usually means 'to limit or add reservations to.' 'Qualified praise' is praise held back, not praise you earned. |
| check verb | to restrain, curb, or hold in the growth or action of something ≈ restrain, curb, arrest ✗ second-meaning: Not 'inspect' or 'verify' here. The GRE sense is 'to hold back or restrain,' as in 'keep in check.' |
| coin verb | to invent or devise a new word or phrase ≈ invent, devise, fabricate ✗ second-meaning: Beyond the noun 'a coin,' the verb means 'to invent (a word).' A different money-related sense, 'to coin money,' means to profit rapidly. |
| novel adjective | new, original, and not resembling anything formerly known ≈ new, original, innovative ✗ second-meaning: The common noun 'novel' (a book) hides the tested adjective sense 'new/original.' Watch the grammatical slot: as a modifier it means novel, not fiction. |
| sound adjective | based on valid reasoning; free from error, defect, or weakness ≈ valid, cogent, solid ✗ second-meaning: Not 'a noise' here. The adjective means solid, valid, or reliable; a verb sense, 'to sound out,' means to probe. |
Tier 2 — high yield
| Word | Meaning · synonyms · trap |
|---|---|
| pedestrian adjective | lacking imagination or excitement; dull and commonplace ≈ dull, prosaic, banal ✗ second-meaning: Not 'a person walking.' As an adjective it means uninspired and ordinary, a negative-polarity word. |
| telling adjective | revealing much; significant or having a striking effect ≈ revealing, significant, cogent ✗ second-meaning: Not the gerund of 'to tell.' As an adjective it means revealing or effective, positive in force. |
| exact verb | to demand and obtain something by force, authority, or persistence ≈ extort, extract, wrest ✗ second-meaning: Not the adjective 'precise' here. The verb means to demand or wring out, often by force. |
| temper verb | to moderate or soften the harshness of something by adding a counterbalancing quality ≈ moderate, soften, mitigate ✗ second-meaning: Not the noun 'a bad temper.' The verb means to moderate or mellow; in metallurgy it also means to harden by heat, an opposite feel. |
| sanction verb | to give official approval or permission for an action ≈ approve, authorize, endorse ✗ second-meaning: A contronym: sanction means both 'approve' and 'penalize' (sanctions on a country). Let context set the polarity; the approval sense is common on the GRE. |
| staple adjective | forming a basic, principal, or main element of something ≈ principal, chief, primary ✗ second-meaning: Not the office 'staple' (fastener). It means a principal commodity or a chief/basic element. |
| adverse adjective | unfavorable, harmful, or acting against one's interests ≈ unfavorable, detrimental, hostile ✗ lookalike: Do not confuse with averse (feeling opposed to). Adverse describes conditions/effects; averse describes a person's attitude and takes 'to.' |
| averse adjective | having a strong feeling of opposition, dislike, or reluctance toward something ≈ reluctant, disinclined, loath ✗ lookalike: Twin of adverse. Averse is a person's reluctance ('averse to change'); adverse is unfavorable circumstances ('adverse weather'). |
| prescribe verb | to lay down authoritatively as a rule; to recommend or order ≈ dictate, stipulate, mandate ✗ lookalike: Opposite of proscribe. Prescribe = recommend or set down as a rule; proscribe = forbid. Their polarities are reversed. |
| Word | Meaning · synonyms · trap |
|---|---|
| eminent adjective | distinguished, prominent, and highly respected in a field ≈ distinguished, illustrious, renowned ✗ lookalike: Do not confuse with imminent (about to happen) or immanent (inherent). Eminent is about high standing. |
| imminent adjective | about to occur at any moment; impending ≈ impending, looming, approaching ✗ lookalike: Twin of eminent (distinguished) and immanent (inherent). Imminent is strictly about time: soon to happen. |
| censure verb | to express formal, severe disapproval or blame ≈ condemn, rebuke, reprove ✗ lookalike: Do not confuse with censor (to examine and suppress objectionable content). Censure is to blame; censor is to cut/suppress. |
| censor verb | to examine material and suppress the parts considered objectionable ≈ suppress, expurgate, redact ✗ lookalike: Twin of censure. Censor removes or blocks content; censure blames a person. Both are negative but do different things. |
| elicit verb | to draw out or evoke a response, reaction, or information ≈ evoke, extract, draw out ✗ lookalike: Do not confuse with illicit (illegal). Elicit is a verb meaning draw out; illicit is an adjective meaning unlawful. |
| illicit adjective | forbidden by law, rules, or custom; unlawful ≈ illegal, unlawful, prohibited ✗ lookalike: Twin of elicit. Illicit is an adjective (unlawful); elicit is a verb (to evoke). Check the grammatical slot. |
| frugal adjective | economical and prudent in the use of resources; sparing without being mean ≈ thrifty, economical, prudent ✗ register: Frugal is approving; do not conflate it with pejorative stingy/parsimonious. The connotation, not just the meaning, must match the sentence. |
Tier 3 — deepen
| Word | Meaning · synonyms · trap |
|---|---|
| discriminating adjective | having or showing refined taste and keen judgment; discerning ≈ discerning, perceptive, astute ✗ second-meaning: Not the pejorative 'prejudiced.' Here it is positive: showing fine discernment. The negative sense of discrimination should not color it. |
| economy noun | sparing, efficient, or restrained use of resources or means ≈ thrift, frugality, restraint ✗ second-meaning: Not 'the national economy.' Here it means sparing efficiency, as in 'economy of expression.' |
| plastic adjective | capable of being shaped or molded; pliable and adaptable ≈ malleable, pliable, supple ✗ second-meaning: Not the synthetic material. The adjective means moldable or adaptable. |
| cardinal adjective | of the greatest importance; fundamental or chief ≈ chief, paramount, principal ✗ second-meaning: Not the bird or the church official. As a modifier it means primary or of the first importance. |
| brook verb | to tolerate or put up with (usually in the negative) ≈ tolerate, abide, countenance ✗ second-meaning: Not the noun 'a small stream.' The verb means to tolerate, and it nearly always appears negated ('brook no...'). |
| flag verb | to grow tired, weak, or less vigorous; to droop ≈ wane, weaken, diminish ✗ second-meaning: Not the banner, and not the newer sense 'to mark for attention.' The GRE sense is 'to weaken or lose energy.' |
| foil verb | to prevent something from succeeding; to thwart or frustrate ≈ thwart, frustrate, stymie ✗ second-meaning: As a verb it means to thwart; as a noun a 'foil' is a contrasting character or thing that sets off another by contrast. |
| steep verb | to soak or saturate; figuratively, to immerse deeply in a quality or subject ≈ soak, immerse, saturate ✗ second-meaning: Not the adjective 'steep' (a sharp slope or a high price). The verb means to soak or immerse. |
| appropriate verb | to take something for one's own use, typically without permission ≈ expropriate, commandeer, usurp ✗ second-meaning: Not the adjective 'suitable.' The verb (stressed differently) means to take for oneself or to set aside funds. |
| Word | Meaning · synonyms · trap |
|---|---|
| consequential adjective | important; having significant results or influence ≈ momentous, significant, weighty ✗ second-meaning: The tested sense is 'important,' not merely 'resulting from' (a consequence). A separate sense, 'self-important,' means pompous. |
| singular adjective | exceptional, remarkable, or out of the ordinary ≈ exceptional, extraordinary, remarkable ✗ second-meaning: Not the grammatical 'singular' (vs plural). It means exceptional or peculiar, and can lean either admiring or odd. |
| reserve noun | self-restraint in expression; reticence or coolness of manner ≈ reticence, restraint, aloofness ✗ second-meaning: Not 'a supply held back' or 'to book.' Here it means reticence or emotional restraint in manner. |
| deprecate verb | to express disapproval of; to belittle or play down ≈ disparage, belittle, denigrate ✗ lookalike: Do not confuse with depreciate (to fall in monetary value). Deprecate is about disapproving or belittling, not price. |
| depreciate verb | to diminish in value over time; also, to disparage ≈ devalue, diminish, lessen ✗ lookalike: Twin of deprecate. Depreciate centers on a loss of value (assets depreciate); deprecate centers on disapproval. |
| proscribe verb | to forbid, prohibit, or condemn something outright ≈ forbid, prohibit, ban ✗ lookalike: The dangerous twin of prescribe: it means forbid, the opposite of recommend. In a blank, check the sentence's polarity to pick the right one. |
| ingenuous adjective | innocent, frank, and unsophisticated; artlessly straightforward ≈ naive, artless, guileless ✗ lookalike: Do not confuse with ingenious (clever, inventive). Ingenuous = naive/frank; disingenuous means insincere. |
| ingenious adjective | cleverly inventive, resourceful, and original ≈ clever, inventive, resourceful ✗ lookalike: Twin of ingenuous. Ingenious is about cleverness, not innocence; a single letter reverses the meaning entirely. |
| flout verb | to openly disregard or show contempt for a rule or convention ≈ defy, disregard, scorn ✗ lookalike: Do not confuse with flaunt (to show off). Flout = defy a rule; flaunt = display ostentatiously. They are unrelated in meaning. |
| Word | Meaning · synonyms · trap |
|---|---|
| flaunt verb | to display something ostentatiously in order to provoke admiration or envy ≈ parade, show off, brandish ✗ lookalike: Twin of flout. Flaunt is to show off; flout is to defy. 'Flaunt the rules' is a common error for 'flout the rules.' |
| credulous adjective | too ready to believe things; easily convinced or deceived ≈ gullible, naive, trusting ✗ lookalike: Do not confuse with credible (believable) or creditable (praiseworthy). Credulous describes a too-trusting person, not the claim. |
| tortuous adjective | full of twists and turns; excessively complex or winding ≈ winding, convoluted, circuitous ✗ lookalike: Do not confuse with torturous (causing pain/torture). Tortuous = winding/complex; torturous = agonizing. |
| appraise verb | to assess the value, quality, or nature of something ≈ evaluate, assess, gauge ✗ lookalike: Do not confuse with apprise (to inform). Appraise = assess value; apprise = to notify someone of something. |
| apprise verb | to inform or notify someone of something ≈ inform, notify, acquaint ✗ lookalike: Twin of appraise. Apprise means to inform (apprise someone of); appraise means to evaluate. Different verbs entirely. |
| disinterested adjective | free from bias or self-interest; impartial ≈ impartial, unbiased, neutral ✗ lookalike: Do not confuse with uninterested (bored, indifferent). Disinterested means impartial, not lacking interest. |
| laconic adjective | using very few words; terse to the point of seeming curt ≈ terse, curt, succinct ✗ register: Laconic is not merely 'brief.' It carries a register of clipped, sparing speech, often implying reserve; do not equate it with a neutral 'concise.' |
| terse adjective | brief and to the point, sometimes abruptly so ≈ succinct, curt, concise ✗ register: Terse can be neutral (efficient) or mildly negative (brusque). Match the sentence's tone; it is milder and less character-marking than laconic. |
| garrulous adjective | excessively talkative, especially about trivial matters ≈ loquacious, voluble, verbose ✗ register: Garrulous carries a disapproving edge (tediously chatty), unlike neutral 'talkative.' Do not swap it for the milder loquacious when the sentence signals annoyance. |
| Word | Meaning · synonyms · trap |
|---|---|
| extol verb | to praise enthusiastically and highly ≈ laud, exalt, acclaim ✗ register: Extol is high-intensity praise; do not treat it as interchangeable with a mild 'commend.' On SE it should pair with a word of equal force (laud), not a weaker one. |
| taciturn adjective | habitually reserved and saying little ≈ reticent, reserved, uncommunicative ✗ register: Taciturn describes a settled disposition of silence, not a single terse remark; it is about temperament, unlike laconic, which describes a style of speech. |
| diffident adjective | lacking self-confidence; shy and hesitant ≈ timid, self-effacing, bashful ✗ lookalike: Do not confuse with indifferent (uncaring). Diffident is about shyness/lack of confidence, not apathy. |
| prosaic adjective | commonplace and unimaginative; dull and matter-of-fact ≈ pedestrian, banal, humdrum ✗ second-meaning: Not simply 'written in prose.' The tested sense is 'dull and ordinary,' a negative-polarity word paired often with pedestrian. |
| equivocal adjective | open to more than one interpretation; deliberately ambiguous ≈ ambiguous, vague, evasive ✗ lookalike: Do not confuse with equivalent (equal) or unequivocal (its own opposite: clear and unambiguous). Equivocal = ambiguous. |
| prodigal adjective | recklessly wasteful, especially of money; extravagant ≈ profligate, spendthrift, wasteful ✗ second-meaning: Does not mean 'wandering' (the 'prodigal son' misleads: he was wasteful, not merely returning). A rarer positive sense means lavishly abundant. |
| laud verb | to praise highly; to extol ≈ extol, acclaim, exalt ✗ register: Laud is elevated, strong praise; on SE it pairs with extol/acclaim, not with a lukewarm 'accept' or 'tolerate.' |
Tier 4 — reach
| Word | Meaning · synonyms · trap |
|---|---|
| husband verb | to use or manage resources thriftily; to conserve ≈ conserve, hoard, save ✗ second-meaning: Not the noun 'spouse.' The verb means to conserve or manage sparingly. |
| cow verb | to intimidate or subdue someone with threats or a show of force ≈ intimidate, daunt, browbeat ✗ second-meaning: Not the animal. The verb means to frighten into submission. |
| milk verb | to exploit or extract as much advantage from something as possible ≈ exploit, extract, drain ✗ second-meaning: Not the beverage. The verb means to exploit or draw the most from a situation. |
| gloss verb | to make something appear more acceptable by minimizing or concealing its faults (often 'gloss over') ≈ whitewash, minimize, palliate ✗ second-meaning: Distinct from the noun 'a gloss' (an explanatory note). The verb 'gloss over' means to conceal or downplay faults. |
| venal adjective | open to bribery; capable of being corrupted for money ≈ corrupt, mercenary, bribable ✗ lookalike: Do not confuse with venial (a minor, pardonable fault). Venal = corruptible; venial = forgivable. Opposite in tone and severity. |
| venial adjective | slight and pardonable; not seriously wrong ≈ pardonable, forgivable, excusable ✗ lookalike: Twin of venal. Venial is a small excusable fault; venal is corruption. One letter separates 'forgivable' from 'for sale.' |
| fawn verb | to seek favor by flattery and servile behavior ≈ grovel, toady, kowtow ✗ register: Fawn is praise turned servile and negative; it is not neutral admiration. A neutral one-word gloss like 'praise' erases its contemptible, obsequious tone. |
| parsimonious adjective | excessively unwilling to spend; stingy ≈ stingy, miserly, penurious ✗ register: Parsimonious is disapproving (stingy), unlike the approving 'thrifty' or 'frugal.' Match the sentence's stance; a neutral gloss loses the criticism. |
| abstruse adjective | difficult to understand; obscure and requiring specialized knowledge ≈ recondite, esoteric, arcane ✗ register: Abstruse describes difficulty of content, not obscurity of fame. Keep it distinct from 'abstract'; abstruse specifically means hard to grasp. |
| Word | Meaning · synonyms · trap |
|---|---|
| perfidious adjective | deceitful and untrustworthy; treacherous ≈ treacherous, traitorous, disloyal ✗ register: Perfidious is strongly pejorative (betrayal of trust), heavier than merely 'dishonest.' On SE pair it with treacherous, not with a mild word like careless. |
| obdurate adjective | stubbornly refusing to change one's opinion or course; unyielding ≈ intransigent, obstinate, inflexible ✗ register: Obdurate is negative (hard-hearted, unpersuadable), stronger than neutral 'firm.' Distinguish from 'resolute,' which can be admiring. |
| perspicacious adjective | having keen insight and shrewd discernment ≈ astute, discerning, shrewd ✗ lookalike: Do not confuse with perspicuous (clearly expressed, lucid). Perspicacious describes a sharp mind; perspicuous describes clear prose. |
| mendacious adjective | given to lying; false or untruthful ≈ untruthful, deceitful, dishonest ✗ register: Mendacious specifically means lying/false, not merely 'unreliable.' Do not soften it to 'mistaken'; it implies deliberate falsehood. |
| fatuous adjective | silly and pointless in a self-satisfied way; complacently foolish ≈ inane, asinine, vacuous ✗ register: Fatuous is strongly derisive (smugly foolish), not a gentle 'unwise.' It marks foolishness paired with complacency, so match a scornful sentence. |
| inchoate adjective | just begun and not yet fully formed; rudimentary ≈ nascent, rudimentary, embryonic ✗ register: Inchoate means unformed/undeveloped, not 'chaotic.' The sound misleads; it is neutral-to-descriptive, marking an early, incomplete stage. |
| munificent adjective | extremely generous, especially in giving ≈ generous, bountiful, lavish ✗ register: Munificent is high-intensity generosity; do not equate it with a modest 'giving.' On SE it pairs with an equally strong word like bountiful. |
| querulous adjective | habitually complaining in a peevish, whining way ≈ petulant, peevish, fractious ✗ lookalike: Do not confuse with 'query'/inquisitive. Querulous means complaining/whining, not questioning. The shared root misleads. |
| enervate verb | to drain of energy, vitality, or strength; to weaken ≈ debilitate, sap, exhaust ✗ lookalike: Counterintuitive: enervate means to weaken, not to 'energize.' Do not read the 'nerve/energy' look as invigorate; its polarity is negative. |
| Word | Meaning · synonyms · trap |
|---|---|
| obsequious adjective | excessively eager to please or obey; fawning and servile ≈ servile, sycophantic, unctuous ✗ register: Obsequious is disapproving (servile flattery), far from neutral 'polite' or 'attentive.' Match a scornful context; the tone is contemptuous. |
Make them stick
- Read the word, its definition, and one example sentence — meaning first, in context.
- Note the part of speech and any second meaning the GRE might test.
- Write your own sentence using the word correctly.
- Review on a spaced schedule: a day later, then a few days, then a week.
- Keep a separate list of lookalike pairs and second-meaning words for extra review.
GRE glossary
| Term | Meaning |
|---|---|
| High-frequency word | A word that appears often enough on the GRE to be worth deliberate study. |
| Second meaning | The harder, less common sense of an otherwise familiar word — a frequent GRE trap. |
| Lookalike confusion | A pair of similar-looking words with different meanings (for example, adverse vs averse). |
| Text Completion (TC) | A Verbal question with 1–3 blanks; multi-blank items are all-or-nothing. |
| Sentence Equivalence (SE) | A Verbal question with six choices where you pick the two near-synonyms that fit. |
| Register | The formality or tone of a word, which must match the sentence. |
| Connotation | The positive or negative charge a word carries beyond its literal meaning. |
Frequently asked questions
How much vocabulary do I need for the GRE?
GRE Verbal is vocabulary-defined: Text Completion and Sentence Equivalence both turn on knowing the precise meaning of hard words. A tiered, high-frequency list learned in context beats memorizing thousands of rare words.
What is a second-meaning word?
A common word used in its harder, less familiar sense (for example, a word you know one meaning of that the GRE tests in another). These are a favorite GRE trap because the easy meaning feels right.
How should I study GRE vocabulary?
Learn words in context with an example sentence, review on a spaced schedule, and pay special attention to second meanings and lookalike pairs. Passive list-reading does not stick.
Are GRE words tested only on Verbal?
Vocabulary drives Text Completion and Sentence Equivalence and helps on Reading Comprehension. Quantitative Reasoning does not test vocabulary.
Is there a penalty for guessing on the GRE?
No. There is no penalty for a wrong answer, so always answer every question.
Where to go from here
You now understand this GRE format better than most test-takers ever will. The points come from reps under the real timer, then from fixing the specific traps you keep falling for.
| Do this next | Why |
|---|---|
| Take an official ETS POWERPREP practice test | Convert format knowledge into reflexes under real timing. |
| Drill the other GRE question types | Verbal (TC, SE, RC) and Quant reward different reflexes. |
| Build a tiered vocabulary habit | GRE Verbal is vocabulary-defined — a little every day compounds. |
| Drill traps in the AskSia app | Per-distractor coaching on why you miss — bilingual, the part a static guide can’t give. |