General Use:
* Use: This is the most straightforward synonym, meaning to put something to work.
* Utilize: Similar to "use" but implies a more deliberate and efficient application.
* Engage: This word implies a more active and intentional use of something.
* Harness: This suggests controlling and using something to your advantage.
Hiring/Work:
* Hire: This specifically refers to employing someone for a job.
* Recruit: Similar to "hire" but often used in a more formal context.
* Take on: This suggests employing someone for a specific task or project.
* Contract: This refers to employing someone through a formal agreement.
Other:
* Apply: This suggests using something for a specific purpose.
* Practice: This refers to using a skill or knowledge regularly.
* Exercise: This implies actively using a physical or mental ability.
The best synonym for "employ" depends on the specific context and the nuance you wish to convey.