- password, watchword, word, parole, countersign - a secret word or phrase known only to a restricted group; "he forgot the password"
--1 is a kind of positive identification; secret, arcanum
- countersignature, countersign - a second confirming signature endorsing a document already signed
--2 is a kind of signature
Derived form: verb countersign1
- countersign - add one's signature to after another's to attest authenticity; "You must countersign on this line of the contract"
--1 is one way to sign
Derived forms: noun countersign2, noun countersignature1
Somebody ----s something