staff noun definition in Teaching and learning topic from the Oxford Advanced Learner's Dictionary

staff

 noun: Teaching and learning topic
[countable, usually singular, uncountable] all the workers employed in an organization considered as a group medical staff (British English) teaching staff (British English) We have 20 part-time members of staff. (North American English) staff members staff development/training a staff restaurant/meeting (especially British English) a lawyer on the staff of the Worldwide Fund for Nature