………………. ………. STAFF ………. ………………..
STAFF – all the workers employed in an organization = personnel.
SP: personal, empleados; FR: personnel; employé; RU: персонал.
Mary joined the teaching STAFF last year.
In British English, STAFF can be used with verbs in SINGULAR or PLURAL:
The staff in this store wears a blue uniform.
The company staff have complained about top managers.
In American English, STAFF is only singluar.