countersign Meaning, Definition & Usage

  1. noun a secret word or phrase known only to a restricted group
    word; password; watchword; parole.
    • he forgot the password
  2. noun a second confirming signature endorsing a document already signed
    countersignature.
  3. verb add one's signature to after another's to attest authenticity
    • You must countersign on this line of the contract

WordNet

Coun`ter*sign" transitive verb
Etymology
Counter- + sign: cf. F. contresigner.
Wordforms
imperfect & past participle Countersigned present participle & verbal noun Countersigning
Definitions
  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.
Coun"ter*sign` adjective
Definitions
  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.

Webster 1913