200 SAT Vocabulary Words You Must Know

How SAT Vocabulary Works on the Digital Test

Each Words in Context question gives you a short passage with a blank. Four answer choices offer words that are related in meaning but differ in precision or tone. The SAT does not test rare or archaic words. Instead, it tests college-level words that educated adults use in writing: words like 'undermine,' 'substantiate,' 'ambivalent,' and 'pragmatic.' Your job is to pick the word that matches the exact logic and tone of the sentence, not just a word that vaguely fits the topic.

Argument and Persuasion Words

These words appear in passages about claims, debates, and reasoning. Contend (to argue or assert). Substantiate (to provide evidence for). Undermine (to weaken or damage from beneath). Refute (to prove wrong with evidence). Corroborate (to confirm or support with additional evidence). Assert (to state confidently). Concede (to admit or yield a point). Dispute (to argue against or question). Advocate (to publicly support). Denounce (to publicly condemn). Qualify (to limit or modify a claim). Bolster (to support or strengthen). Warrant (to justify or provide grounds for). Dismiss (to reject as unworthy of consideration). Validate (to confirm or prove accurate).

Analysis and Thinking Words

These describe how people examine ideas. Scrutinize (to examine closely and critically). Discern (to perceive or recognize something not obvious). Deduce (to reach a conclusion through reasoning). Speculate (to form a theory without firm evidence). Infer (to conclude from evidence rather than explicit statement). Hypothesize (to propose an explanation for testing). Assess (to evaluate or estimate the nature of). Interpret (to explain the meaning of). Distinguish (to recognize as different). Synthesize (to combine elements into a coherent whole). Evaluate (to judge the value or quality of). Postulate (to suggest as a basis for reasoning). Extrapolate (to extend known data into unknown areas). Elucidate (to make clear or explain). Illuminate (to clarify or shed light on).

Degree and Intensity Words

The SAT frequently tests whether you can choose the word with the right strength. Slight (small in degree). Modest (moderate, not extreme). Substantial (considerable in size or importance). Profound (very deep or intense). Negligible (so small as to be meaningless). Marginal (minor, at the edge). Significant (large enough to matter). Pronounced (clearly noticeable, marked). Subtle (not immediately obvious, delicate). Drastic (severe, extreme in effect). Incremental (increasing gradually by small amounts). Overwhelming (so great as to be irresistible). Moderate (average in amount, not extreme). Pervasive (spread throughout, existing everywhere). Acute (intense, severe, or sharp).

Change and Development Words

Passages about science, history, and social trends use these. Evolve (to develop gradually over time). Transform (to change completely in form or character). Fluctuate (to vary irregularly). Diminish (to make or become less). Amplify (to increase in strength or intensity). Accelerate (to increase speed or rate). Stagnate (to cease developing or progressing). Deteriorate (to become progressively worse). Emerge (to come into existence or view). Proliferate (to increase rapidly in number). Adapt (to adjust to new conditions). Converge (to come together from different directions). Diverge (to move apart or differ). Persist (to continue firmly despite difficulty). Recede (to move back or diminish).

Relationship and Connection Words

These describe how ideas, events, or people relate. Correlate (to have a mutual relationship). Complement (to complete or enhance by providing what is lacking). Contradict (to deny or be inconsistent with). Parallel (to be similar or analogous to). Precede (to come before in time or order). Coincide (to occur at the same time). Correspond (to match or be analogous). Supplant (to replace, especially by force or strategy). Supersede (to take the place of something formerly in authority). Derive (to obtain from a source). Attribute (to regard as caused by). Integrate (to combine into a whole). Juxtapose (to place close together for comparison). Facilitate (to make easier or possible). Impede (to delay or obstruct).

Attitude and Tone Words

Critical for identifying author tone and purpose. Skeptical (not easily convinced, questioning). Enthusiastic (showing intense enjoyment or approval). Ambivalent (having mixed or contradictory feelings). Dismissive (showing that something is unworthy of consideration). Reverent (showing deep respect). Pragmatic (dealing with things practically rather than ideally). Cautious (careful to avoid risk). Optimistic (hopeful about the future). Critical (expressing disapproval based on analysis). Indifferent (having no particular interest or concern). Appreciative (feeling or showing gratitude or pleasure). Defiant (showing open resistance). Resigned (accepting something undesirable but inevitable). Sardonic (grimly mocking). Earnest (sincere and intense).

Science and Research Words

Common in passage contexts about studies and discoveries. Empirical (based on observation rather than theory). Viable (capable of working successfully). Anomaly (something that deviates from what is expected). Phenomenon (a fact or event that is observed). Preliminary (coming before the main part, introductory). Replicate (to reproduce or copy exactly). Mitigate (to make less severe or serious). Prevalent (widespread, existing commonly). Novel (new and original, not previously known). Inherent (existing as a permanent, essential quality). Robust (strong, healthy, or vigorous). Plausible (seeming reasonable or probable). Rigorous (extremely thorough and careful). Conclusive (serving to prove a case, decisive). Unprecedented (never done or known before).

How to Study These Words Effectively

Do not memorize definitions in isolation. For each word: read it in a full sentence, write your own sentence using the word, identify 2-3 synonyms and understand how they differ in meaning, and practice choosing between similar words in SAT-style sentence completions. Study 10-15 words per day and review previous words every third day. Use vocabulary games that test words in context rather than definition matching. After 4-6 weeks of daily vocabulary practice, most students see noticeable improvement on Words in Context questions.

Word Roots That Unlock SAT Vocabulary

Learning roots, prefixes, and suffixes lets you decode unfamiliar words on test day. Key prefixes: un-/in-/im- (not), re- (again/back), pre- (before), sub- (under/below), trans- (across), super- (above/beyond), inter- (between), mis- (wrong). Key roots: -dict- (say), -cred- (believe), -spec- (look), -vert/vers- (turn), -duct- (lead), -scrib/script- (write), -port- (carry), -tract- (pull/draw). Key suffixes: -ous/-ious (full of), -tion/-sion (act/state of), -ive (tending to), -able/-ible (capable of). When you encounter an unknown word, break it into parts. 'Unprecedented' = un (not) + pre (before) + ced (go) + ent (state) = a state of not having gone before = never happened before.

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