Meaning of the word attest in English

What does attest mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

attest

US /əˈtest/
UK /əˈtest/

Verb

1.

provide or serve as clear evidence of

Example:
His success attests to his hard work.
The empty streets attested to the effectiveness of the lockdown.
2.

declare that something exists or is the case

Example:
I can attest to the truth of his statement.
The document was signed by a notary public to attest its authenticity.