certify

About 0.84 uses per million words.

Meaning

1. verb To attest to (a fact) as the truth.
2. verb To authenticate or verify in writing.
3. verb To attest that a product, service, organization, or person has met an official standard.

   These blankets have been certified as fireproof.

4. verb To inform; to tell (a person) that something is true.
5. verb To assure (oneself) of something; to ascertain.

Similar words

attest endorse evidence license demonstrate manifest licence authenticate validate verify

Often followed by

that the to a and in their as such

Word family

certified certifier certifiers certifies certifying