[ noun ] a seal (especially one used to mark documents officially) <noun.artifact>
Signet \Sig"net\, n. [OF. signet a signet, F., a bookmark, dim. of signe. See {Sign}, n., and cf. {Sennet}.] A seal; especially, in England, the seal used by the sovereign in sealing private letters and grants that pass by bill under the sign manual; -- called also {privy signet}.
I had my father's signet in my purse. --Shak.
{Signet ring}, a ring containing a signet or private seal.
{Writer to the signet} (Scots Law), a judicial officer who prepares warrants, writs, etc.; originally, a clerk in the office of the secretary of state.