Meaning of “employ” - Learner’s Dictionary

employ

verb [ T ] uk us /ɪmˈplɔɪ/
WORK

B1 If a person or company employs someone, they pay that person to work for them:

The company employs 2500 staff.
[ + to do sth ] They employ her to look after their children.
USE formal

to use something:

Companies employ clever tactics to persuade us to buy their products.

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