What does exact mean?
Exact functions primarily as an adjective meaning strictly accurate or correct in every detail, leaving no room for approximation or doubt. It can describe measurements, statements, times, quantities, or people known for their precision, as in 'an exact replica' or 'the exact date of the signing'. A second, less common use treats exact as a verb meaning to demand and obtain something — payment, obedience, or revenge — often with an implication of force or inevitability, as in 'they exacted a heavy price'. The adjective carries a neutral, even admiring connotation of thoroughness, while the verbal sense tends toward the formal and sometimes ominous register of law or history. Derived forms include exactly, exactness, and the related adjectives exacting and exigent. Because English offers many near-synonyms such as precise and accurate, exact earns its place by stressing completeness and freedom from any error whatsoever.
Strictly accurate or correct in every detail; precise, admitting no deviation from a standard or fact.
"Give me the exact figure, not an estimate."
Commonly used with nouns denoting time, quantity, location, or likeness (e.g., exact time, exact amount, exact copy).
To demand and obtain something such as payment, obedience, or revenge, typically through force, authority, or persistence.
"The treaty exacted reparations from the defeated nation."
Formal in register; frequently appears in figurative expressions like exact revenge or exact a toll.
When you 'exact revenge', you're using the same ancient root that gives us 'exigent' — literally demanding that a debt be paid.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of exact
Exact derives from the Latin past participle exactus, formed from the verb exigere, meaning 'to drive out, measure, or demand'. The word entered English in the late sixteenth century, first carrying the verb sense of demanding or enforcing before the adjective sense of precisely accurate became dominant. It shares its Latin root with exigent, exigency, and exaction, all of which preserve the original idea of demanding something owed.
Related word forms
How exact is actually used
As an adjective, exact is neutral-to-formal and common in both everyday and technical registers. The verb sense is comparatively formal and often appears in figurative contexts involving cost, tribute, or vengeance rather than ordinary requests.
Easily confused with exact
Exact means precise or accurate, while exacting means demanding great effort, care, or attention.