Staff  —n. 1 a stick or pole for use in walking or as a weapon. B stick or rod as a sign of office etc. C person or thing that supports. 2 a people employed in a business etc. B those in authority in a school etc. C body of officers assisting an officer in high command (general staff). 3 (pl. -s or staves) mus. Set of usu. Five parallel lines on or between which notes are placed to indicate their pitch. —v. Provide (an institution etc.) With staff. [old english]