Sign (?), v. i. 1. To be a sign or omen. [Obs.] Shak.
2. To make a sign or signal; to communicate directions or intelligence
by signs.
3. To write one's name, esp. as a token of assent, responsibility, or
obligation.
Sign"a*ble (?), a. Suitable to be signed; requiring signature; as, a
legal document signable by a particular person.
Sig"nal (?), n. [F., fr. LL. signale, fr. L. signum. See Sign, n.] 1. A
sign made for the purpose of giving notice to a person of some
occurence, command, or danger; also, a sign, event, or watchword, which
has been agreed upon as the occasion of concerted action.
All obeyed The wonted signal and superior voice Of this great
potentate.
Milton.