confirm

[kuhn-furm] / kənˈfɜrm /

VERB

ratify, validate, prove

Synonyms

STRONGEST

affirm approve back certify corroborate endorse establish explain sign substantiate support uphold verify

STRONG

attest authenticate bless buy check circumstantiate debunk double-check justify okay sanction settle subscribe underpin vouch warrant witness

WEAK

bear out check out give green light give high sign give stamp of approval give the go-ahead give the nod lap up make good make sure rubber-stamp sign off on size up thumbs-up

Antonyms

STRONGEST

confuse contradict deny disallow disapprove discredit disprove invalidate oppose refuse reject

STRONG

disagree refute veto

WEAK

annul cancel destroy repudiate void

VERB

reinforce

Synonyms

STRONGEST

assure establish

STRONG

buttress clinch fix fortify invigorate settle strengthen

WEAK

make firm

Antonyms

STRONG

discourage dishearten dissuade hurt unsettle weaken

WEAK

annul cancel contradict deny destroy disprove invalidate oppose repudiate veto void

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The Met Office has confirmed 2025 as the warmest and sunniest on record in the United Kingdom.

From BBC

Less than 30 hours later, the dust settled on a mind-boggling stretch that confirmed a wholesale changing of the guard.

From The Wall Street Journal

This is very different from being able to confirm whether something is actually true.

From The Wall Street Journal

He stressed the AI reader his school spent three years developing is being used only to confirm human readers’ essay scores.

From Los Angeles Times

Contacted by AFP, the imperial guard could not immediately confirm the reports.

From Barron's