countersign

1. v. t. To sign on the opposite side of (an instrument or writing); hence, to sign in addition to the signature of a principal or superior, in order to attest the authenticity of a writing. Source: opted

2. a. The signature of a secretary or other officer to a writing signed by a principal or superior, to attest its authenticity. Source: opted

3. a. A word/private">private word/signal">signal, word, or phrase, which must be given in order to pass a sentry; a watchword. Source: opted

4. n. a word/secret">secret word or phrase known only to a restricted group Source: wordnet

5. n. a second confirming signature endorsing a document already signed Source: wordnet

6. v. add one's signature to after another's to attest authenticity Source: wordnet

7. To sign on the opposite side of (an instrument or writing); hence, to sign in addition to the signature of a principal or superior, in order to attest the authenticity of a writing. 1. The signature of a secretary or other officer to a writing signed by a principal or superior, to attest its authenticity. 2. (Mil.) A private signal, word, or phrase, which must be given in order to pass a sentry; a watchword. Source: webster

8. To sign on the opposite side of (an instrument or writing);hence, to sign in addition to the signature of a principal orsuperior, in order to attest the authenticity of a writing. Source: adambom

9. v. add one's signature to after another's to attest authenticity Source: ecdict

Thesaurus links