Definitions

testify

[tes-tuh-fahy] / ˈtɛs təˌfaɪ /

VERB

vouch for; give testimony

Synonyms

STRONGEST

announce argue assert declare depose indicate swear

STRONG

affirm attest bespeak betoken certify corroborate demonstrate depone evince mount prove show sing state warrant witness

WEAK

bear witness cross one's heart give evidence give facts give one's word make evident point to say so stand up for swear to swear up and down token

Antonyms

STRONGEST

conceal deny hide

STRONG

contradict discredit refute reject veto

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.

Mancini said the police told her that her daughter would likely need to testify if she pressed charges and said the boy would face limited consequences because he was a minor.

From The Wall Street Journal • Jun. 14, 2026

He has been summoned to testify in court later this month.

From BBC • Jun. 12, 2026

Courts Director Robert Conrad will testify before an appropriations subcommittee this summer; members should question him about workplace conduct.

From Slate • Jun. 8, 2026

Chantal wants to testify so others avoid her misfortune.

From Barron's • Jun. 5, 2026

For the next few weeks, until July 27, the lawyers called witnesses to testify, and argued the case.

From Nazi Saboteurs by Samantha Seiple

Vocabulary lists containing testify

Holes

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"The Crucible" -- Vocabulary from all 4 Acts

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Sojourner Truth's "Ain't I A Woman?" (1863)

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