employ >> /əmˈplɔɪ/
Definition: [transitive verb] Give work to (someone) and pay them for it.
Example: the firm employs 150 people
Definition: [transitive verb] Make use of.
Example: the methods they have employed to collect the data
Definition: [noun] The state or fact of being employed for wages or a salary.
Example: I started work in the employ of a grocer and wine merchant