1. a person or organization that employs someone for work
2. a person who rents or leases something from someone else

Examples

• The hirer conducted interviews for the marketing position.
• As the hirer, she was responsible for checking references.
• The car hirer returned the vehicle with a full tank of gas.
• Equipment hirers must sign a damage waiver before use.
• The hirer of the venue canceled the event due to weather.
• New hirers often struggle to find qualified candidates.