Defenition of the word countersign

Defenition of the word countersign
- To sign a document that has been signed by someone else, in confirmation or authentication.
- add one's signature to after another's to attest authenticity; "You must contersign on this line of the contract"
- a second confirming signature endorsing a document already signed
- a secret word or phrase known only to a restricted group; "he forgot the password"
- add one''s signature to after another''s to attest authenticity; "You must countersign on this line of the contract"
- a secret word or phrase known only to a restricted group
- add one's signature to after another's to attest authenticity