intransitive verb.
To affirm to be correct, true, or genuine.
intransitive verb.
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intransitive verb.
To certify by signature or oath.
intransitive verb.
To certify in an official capacity.
intransitive verb.
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intransitive verb.
To supply or be evidence of: synonym: indicate.
intransitive verb.
To confirm the existence, usage, or currency of (a word, for example), as by being recorded in writing.
intransitive verb.
To put under oath.
intransitive verb.
To bear witness; give testimony.
noun.
Attestation.