testify
/ˈtɛstɪfaɪ/
Proposed by a contributor, not yet supported by evidence.
Also seen as: testifies · testifying · testified
Sense 1
Meaning · English
To make a declaration, or give evidence, under oath.
Verb
Examples
One witness shall not testify against any person to cause him to die.
Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01)
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).
Sense 2
Meaning · English
To make a statement based on personal knowledge or faith.
Verb
Examples
We speak that we do know, and testify that we have seen; and ye receive not our witness.
Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01)
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).
Common questions
What does “testify” mean?
To make a declaration, or give evidence, under oath.
Is “testify” formal or informal?
No register label has been reviewed yet — treat it as neutral and check the usage notes above.