Английский разговорный словарь (основной) - signet

ˈsɪɡnɪt n. 1 a seal used instead of or with a signature as authentication. 2 (prec. by the) the royal seal formerly used for special purposes in England and Scotland, and in Scotland later as the seal of the Court of Session. øsignet-ring a ring with a seal set in it. [ME f. OF signet or med.L signetum (as SIGN)]