plural of sign-on

A handpainted advertising sign that has been preserved on a building for an extended period of time and has thus begun to fade.

(medicine) A sign of cholecystitis, etc. identified by the patient experiencing pain when the gall bladder is obstructed on the right-hand side while he/she breathes out.

An oval sign attached to the back of a road vehicle to show the nationality of the vehicle.

The unilateral painless periorbital swelling associated with the acute stage of Chagas' disease.

(baseball) A sign from the third base coach, or whoever the batter receives signals from, telling the batter that no matter what he will not swing at the next pitch.

A sign indicating that a certain facility (e.g. parking space, toilet) is reserved for disabled people.

(astrology) Any of twelve signs, corresponding to constellations, that are used as the basis of astrology

(astrology) Any of the twelve astrological signs.

(idiomatic) Something that is symbolic of an era.