Meaning of “personnel” - Learner’s Dictionary

personnel

noun uk us /ˌpɜːsənˈel/
WORKERS [ plural ]

the people who work for an organization:

military personnel
DEPARTMENT [ U ]

the department of an organization that deals with finding people to work there, keeping records about them, etc:

I need to speak to someone in Personnel.
the personnel manager

(Definition of “personnel” from the Cambridge Learner’s Dictionary © Cambridge University Press)