school vs staff

school and staff both are nouns.

Word	Noun	Adjective	Verb	Adverb
school	Yes	No	Yes	No
staff	Yes	No	Yes	No

school (noun)	staff (noun)
a building where young people receive education	a strong rod or stick with a specialized utilitarian purpose
the process of being formally educated at a school	(music) the system of five horizontal lines on which the musical notes are written
an educational institution	a rod carried as a symbol
a large group of fish	the body of teachers and administrators at a school
a body of creative artists or writers or thinkers linked by a similar style or by similar teachers	personnel who assist their superior in carrying out an assigned task
an educational institution's faculty and students	building material consisting of plaster and hair; used to cover external surfaces of temporary structure (as at an exposition) or for decoration
the period of instruction in a school; the time period when school is in session

school (verb)	staff (verb)
swim in or form a large group of fish	provide with staff
educate in or as if in a school	serve on the staff of
teach or refine to be discriminative in taste or judgment