Real Dictionary

staff
A staff is the five lines that music is written on.
If an organization is staffed by particular people, they are the people who work for it.
The staff of an organization are the people who work for it.
countable noun: A staff is a strong stick or pole.
plural noun: People who are part of a particular staff are often referred to as staff.

staff in American English 1
a stick, rod, or pole

staff in American English 2
a building material of plaster and fiber, used for temporary decorative work
noun: a composition of plaster and fibrous material used for a temporary finish and in ornamental work, as on exposition buildings

staff in American Englishfor 1–5, 9for 6–8, 10, 11 1
adjective: of or pertaining to a military or organizational staff
intransitive verb: to hire employees, as for a new office or project
noun: a group of persons, as employees, charged with carrying out the work of an establishment or executing some undertaking
transitive verb: to provide with a staff of assistants or workers

staff in British English 1
noun: a group of people employed by a company, individual, etc, for executive, clerical, sales work, etc
verb: to provide with a staff

staff in British English 2
noun: a mixture of plaster and hair used to cover the external surface of temporary structures and for decoration