GRE Vocabulary 2026: 100 High-Frequency Words Grouped by Theme with Example Sentences

Updated on May 23, 2026. GRE format details verified against ETS official GRE documentation. Note: The GRE has had ONE Analytical Writing task (Analyze an Issue essay) since September 2023 — not two.

GRE Vocabulary 2026: 100 High-Frequency Words Grouped by Theme with Example Sentences

GRE Verbal Reasoning does not test whether you can define a word. It tests whether you can identify which word fits a specific rhetorical role in a sentence — expressing criticism, support, deception, change, or complexity. Text Completion and Sentence Equivalence questions require you to know not just what a word means but what category of meaning it occupies so you can match it to the logic of the blank. The words below are grouped by semantic theme because that grouping reflects how GRE questions are actually constructed.

How does the GRE actually test vocabulary?

Text Completion questions (1–3 blanks) require you to choose the word that completes each blank so that the entire sentence makes logical and rhetorical sense. There is no partial credit — all blanks must be correct. Sentence Equivalence questions (1 blank, choose 2 answers) require two words that produce sentences with equivalent meaning. Both question types reward candidates who understand degrees of meaning (castigate is stronger than criticize; lambaste is stronger than castigate) and rhetorical direction (does this sentence pivot with a contrast, or does it reinforce the initial idea?).

This is why memorizing definitions alone is insufficient. A candidate who knows that "censure" means "to criticize" but doesn't recognize that it implies official or formal criticism will choose it in the wrong context. The theme-based organization below is designed to help you internalize both the definition and the rhetorical register of each word.

For strategy on applying vocabulary in Text Completion questions specifically, see how to master GRE Text Completion.

Group 1: Words expressing criticism and disapproval

• censure (v./n.) — to formally criticize or condemn. "The committee censured the senator for misusing campaign funds." Wrong usage: do not use for private criticism — censure implies official or public condemnation.
• castigate (v.) — to reprimand severely. "The professor castigated the student for submitting work that was largely plagiarized."
• excoriate (v.) — to criticize harshly, to flay verbally. "The review excoriated the film for its shallow characterizations."
• lambaste (v.) — to attack with harsh criticism. "The editorial lambasted the administration's handling of the housing crisis."
• impugn (v.) — to call into question the integrity or validity of. "Defense counsel attempted to impugn the credibility of the prosecution's key witness."
• vituperate (v.) — to use abusive language; to berate violently. "The critic vituperated the playwright in terms that bordered on personal attack."
• remonstrate (v.) — to protest or argue forcefully against. "She remonstrated with the board about the decision to cut the arts budget."
• reprove (v.) — to express disapproval, often mildly. "The mentor reproved the intern for missing deadlines without explanation."
• upbraid (v.) — to scold or reproach. "He was upbraided by his supervisor for the careless errors in the report."
• decry (v.) — to publicly denounce. "Environmental advocates decried the decision to reopen logging in the protected forest."
• denounce (v.) — to publicly declare to be wrong or evil. "The mayor denounced the vandalism as an attack on community values."
• admonish (v.) — to warn or reprimand firmly but not harshly. "The teacher admonished students to double-check their calculations."

Group 2: Words expressing support and praise

• laud (v.) — to praise highly. "Critics lauded the novel for its structural originality."
• extol (v.) — to praise enthusiastically. "The biography extols the scientist's contributions while glossing over her failures."
• lionize (v.) — to treat as a celebrity or object of great interest. "The press lionized the returning explorer in ways that bordered on hagiography."
• eulogize (v.) — to speak or write in praise of, especially at a funeral. "The senator was eulogized as a champion of civil rights."
• champion (v.) — to actively support or defend a cause or person. "She championed the rights of undocumented workers throughout her tenure."
• espouse (v.) — to adopt or support a belief or cause. "The reform party espoused fiscal conservatism while expanding social programs."
• buttress (v.) — to support or strengthen. "The new study buttresses the existing evidence for the vaccine's long-term efficacy."
• vindicate (v.) — to clear from blame; to prove to be right. "The audit vindicated the CFO's management of the fund."
• corroborate (v.) — to confirm or support with evidence. "A second witness corroborated the defendant's alibi."
• substantiate (v.) — to provide evidence to support a claim. "The researcher was unable to substantiate her hypothesis with the available data."
• panegyrize (v.) — to write or deliver a panegyric; to lavishly praise. "The retrospective panegyrized the architect without engaging critically with her later work."

Group 3: Words expressing deception and dishonesty

• prevaricate (v.) — to speak or act in an evasive way; to avoid stating the truth directly. "When asked about the missing funds, the treasurer prevaricated rather than answering directly."
• equivocate (v.) — to use ambiguous language to conceal the truth. "The politician equivocated on the tax question throughout the debate."
• dissemble (v.) — to conceal one's true motives, feelings, or nature. "She dissembled her anxiety behind a confident facade."
• obfuscate (v.) — to render obscure or unclear; to confuse deliberately. "The contract was drafted to obfuscate the penalty clauses."
• mendacious (adj.) — not telling the truth; lying. "The mendacious report overstated the project's completion by 40%."
• duplicitous (adj.) — deceitful in behavior or speech. "His duplicitous negotiations with both parties collapsed when the two sides compared notes."
• perfidious (adj.) — deceitful and untrustworthy; treacherous. "The perfidious advisor betrayed the king's military strategy to rival factions."
• specious (adj.) — superficially plausible but actually wrong. "The argument was specious — it sounded logical until examined closely."
• sophistry (n.) — the use of clever but false arguments. "The defense attorney's sophistry impressed the jury but ultimately failed to overcome the evidence."
• chicanery (n.) — the use of trickery to achieve a goal. "The audit revealed years of accounting chicanery that concealed losses."
• subterfuge (n.) — deception used to achieve one's goal. "The spy gained access to the facility through an elaborate subterfuge involving forged credentials."

Group 4: Words expressing change and reversal

• vacillate (v.) — to waver between different positions or opinions. "The committee vacillated for months before finally approving the budget."
• oscillate (v.) — to swing back and forth; to vary between extremes. "Public opinion on the issue has oscillated between support and opposition for decades."
• abjure (v.) — to formally reject or renounce a belief. "Under political pressure, he abjured his previous stance on immigration reform."
• recant (v.) — to withdraw a statement or opinion. "After the evidence was presented, the witness recanted his original testimony."
• repudiate (v.) — to refuse to accept or be associated with. "The party officially repudiated the candidate's remarks."
• apostasy (n.) — abandonment of a previously held belief. "His defection to the opposition was viewed as apostasy by his former supporters."
• recidivism (n.) — a tendency to relapse into a previous pattern of behavior. "The study measured recidivism rates among formerly incarcerated individuals."
• metamorphosis (n.) — a complete transformation. "The city's metamorphosis from industrial center to tech hub occurred over two decades."
• transmogrify (v.) — to transform in a surprising or magical way. "The director transmogrified a minor short story into a sprawling three-hour film."
• fluctuate (v.) — to rise and fall irregularly. "Commodity prices fluctuated wildly in the months following the harvest failure."

Group 5: Words expressing complexity and obscurity

• abstruse (adj.) — difficult to understand; obscure. "The physicist's lecture grew increasingly abstruse as it moved into string theory."
• recondite (adj.) — not known by many people; obscure. "The footnotes contained recondite references that only specialists would recognize."
• esoteric (adj.) — intended for or understood by only a small group with specialized knowledge. "The ritual had esoteric significance known only to initiates of the order."
• arcane (adj.) — understood by few; mysterious. "The tax code's arcane provisions required interpretation by specialists."
• labyrinthine (adj.) — intricate and confusing; like a labyrinth. "The bureaucratic process for obtaining a permit was labyrinthine."
• convoluted (adj.) — extremely complex and difficult to follow. "The convoluted plot left many readers confused by the final chapter."
• Byzantine (adj.) — excessively complicated; devious. "The organization's Byzantine reporting structure made accountability nearly impossible."
• tortuous (adj.) — excessively complex; also, full of twists (literal). "The negotiations followed a tortuous path before reaching agreement." Wrong usage: do not confuse with "torturous" (causing pain).
• opaque (adj.) — not transparent; not easily understood. "The committee's decision-making process was opaque to outside observers."

Group 6: Words expressing abundance and scarcity

• prolific (adj.) — producing a large amount; highly productive. "She was a prolific writer, publishing four novels in three years."
• fecund (adj.) — producing or capable of producing in abundance. "The fecund soil yielded three harvests annually."
• plethora (n.) — an excess; a large amount. "There is a plethora of study materials available for the GRE."
• surfeit (n./v.) — an excessive amount; to supply to excess. "A surfeit of data made identifying the key variables difficult."
• superfluous (adj.) — unnecessary, especially through being more than enough. "The report included several superfluous appendices that added length without adding information."
• paucity (n.) — a small or insufficient quantity. "A paucity of evidence forced the researcher to draw tentative conclusions."
• dearth (n.) — a scarcity or lack. "The dearth of qualified candidates made the hiring process unexpectedly difficult."
• scant (adj.) — barely sufficient; limited. "There is scant evidence that the intervention produced lasting behavioral change."
• meager (adj.) — lacking in quantity or quality. "The meager funding allotted to the program could not sustain it past the first year."
• penury (n.) — extreme poverty; insufficiency. "The artist spent much of his life in penury, unrecognized until after his death."

Group 7: Words about temperament and mood

• phlegmatic (adj.) — having an unemotional and stolidly calm disposition. "His phlegmatic response to the crisis reassured the team."
• sanguine (adj.) — optimistic, especially in difficult situations. "She remained sanguine about the company's prospects despite the market downturn."
• ebullient (adj.) — cheerful and full of energy. "The ebullient coach motivated players even during the team's losing streak."
• lugubrious (adj.) — looking or sounding sad and dismal. "The lugubrious tone of the memoir reflected the author's grief."
• morose (adj.) — sullen and ill-tempered. "He grew morose as the rejection letters accumulated."
• querulous (adj.) — complaining in a petulant or whining manner. "The querulous passenger complained about every aspect of the flight."
• truculent (adj.) — eager to argue or fight; aggressively defiant. "The truculent witness made the deposition unnecessarily combative."
• lachrymose (adj.) — tearful or given to weeping. "The lachrymose film earned several award nominations for its emotional performances."
• pugnacious (adj.) — eager or quick to argue, quarrel, or fight. "The pugnacious negotiator alienated both parties in the mediation."

GRE Vocabulary mini-quiz: 10 Text Completion and Sentence Equivalence questions

1. The historian argued that the document, far from being a reliable account, was _______ — carefully crafted to advance the author's political agenda. (A) meticulous (B) tendentious (C) sanguine (D) fecund (E) phlegmatic Answer: B (tendentious) — "tendentious" means biased or advocating a particular point of view. The sentence signals a document designed to serve a purpose, not to report neutrally.

2. The scientist was known for his _______ approach to evidence: he would accept no claim without multiple independent corroborations. (A) specious (B) scrupulous (C) equivocal (D) recondite Answer: B (scrupulous) — meticulous attention to correctness. "Equivocal" would mean ambiguous; "recondite" would mean obscure.

3. Sentence Equivalence: His lecture, while brilliant in its insights, was so _______ that most students could follow only the first twenty minutes. (A) abstruse (B) prolix (C) perspicuous (D) lucid (E) convoluted (F) arcane Answer: A and E (abstruse / convoluted) — both mean difficult to understand; the sentence needs a word meaning hard to follow.

4. Rather than addressing the accusations directly, the official chose to _______, offering answers that technically addressed the questions without revealing anything substantive. (A) impugn (B) castigate (C) equivocate (D) lambaste Answer: C (equivocate) — technically answering without revealing the truth.

5. The documentary _______ the activist so enthusiastically that it read more like promotional material than journalism. (A) excoriated (B) repudiated (C) lionized (D) vacillated Answer: C (lionized) — treated as a celebrity; the "so enthusiastically" signals excessive praise.

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