n. , v. /kown"teuhr suyn'/ ; v. also /kown'teuhr suyn"/ , n.
1. a sign used in reply to another sign.
2. Mil. a secret sign that must be given by authorized persons seeking admission through a guarded area.
3. a signature added to another signature, esp. for authentication.
v.t.
4. to sign (a document that has been signed by someone else), esp. in confirmation or authentication.
[ 1585-95; COUNTER- + SIGN, modeled on MF contresigne, or its source, OIt contrasegno ]