(transitive) To sign (legislation) as a mark of official approval.

(astrology) Any of the three star signs Aquarius, Gemini and Libra.

(astrology) Any of the three star signs Cancer, Pisces and Scorpio.

(astrology) Any of the three star signs Aries, Leo and Sagittarius.

(astrology) Any of the three star signs Capricorn, Taurus and Virgo.

(medicine) One of the signs of tetany seen in hypocalcemia. When the facial nerve is tapped at the angle of the jaw (i.e. masseter muscle), the facial muscles on the same side of the face contract momentarily.

A relation symbol that indicates that two expressions are different; the ≠ symbol.

Alternative form of book signing.

plural of sign language

(Christianity) A gesture of the hand moving over the front of one's body in the shape of a cross made as part of ritual or to invoke divine protection.