v. t. | 1. | 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. |
a. | 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. |
Noun | 1. | ![]() |
2. | countersign - a second confirming signature endorsing a document already signed Synonyms: countersignature | |
Verb | 1. | countersign - add one's signature to after another's to attest authenticity; "You must countersign on this line of the contract" |
COUNTERSIGN. To countersign is to sign on the opposite side of an instrument already signed by some other person or officer, in order to secure its character of a genuine paper; as a bank note is signed by the president and countersigned by the cashier.
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