countersign meaning and definition

COUNTERSIGN noun

Definition of countersign (noun)

1. a secret word or phrase known only to a restricted group
   • "he forgot the password"
   • synonyms: parole, password, watchword, word
2. a second confirming signature endorsing a document already signed
   • synonyms: countersignature

COUNTERSIGN verb

Definition of countersign (verb)

1. add one's signature to after another's to attest authenticity
   • "You must countersign on this line of the contract"