exactly

The word “exactly” means precisely, with no approximation or margin of error. In plain terms, precisely — or, said alone, "you're completely right.".

“Exactly” is pronounced ihg-ZAK-lee (/ɪɡˈzæk(t).li/ in IPA).

Here is “exactly” used in a sentence: “The train left at exactly nine o'clock.”

Words with a similar meaning to “exactly” include exact, perfectly, correctly, dead-nuts, definitely and directly.

The opposite of “exactly” — its antonyms — are approximately, imprecisely, inaccurately, incorrectly and inexactly.

Depending on how it is used, “exactly” can be an adverb and an interjection.

“Exactly” is a very common word in modern English, usually learned at around the A2 level.

“Exactly” has 2 distinct senses listed in this dictionary. The most common is: precisely, with no approximation or margin of error.

Exactly means precisely, with no margin of error — 'exactly noon' is 12:00, not a minute either side. Approximately means roughly or about, allowing for some difference. The two are opposites: one insists on a precise figure, while the other signals a rough estimate that may be slightly off.

As a one-word reply, 'Exactly' signals strong agreement — it tells the speaker they have understood or expressed something perfectly, with nothing to add or correct. It is more emphatic than a simple 'yes', suggesting the point matches your own view precisely. It works in both casual and formal conversation.

Exactly works in both registers. In formal or technical writing it stresses precision — 'the sample weighed exactly ten grams.' In everyday speech it often adds emphasis or agreement — 'that's exactly what I meant.' It is a neutral, widely used adverb, so you can rely on it in almost any context.