noun
contractor
KAHN-trak-ter/ˈkɑːntræktər/
A party bound by an agreement to perform specified work.
The contractor receives payment from the homeowner for installing the cabinet.

Etymology
“Drawing together” became a metaphor for making an agreement. A contractor was someone who entered such an agreement, later specifically a provider of work, services, or goods at an agreed price.
In context
update quality assurance system. Clients have the right to audit the system and also perform their own independent checks of the work being completed. And if they can prove the contractor is not complying, they can backcharge them.
More examples
- Our contractor agrees to finish the repairs by Friday.
- The city hires two contractors to maintain its parks.
- She works as an independent contractor, designing websites for local businesses.
Forms
contractor · contractors
contract noun — A legally binding agreement between two parties.
subcontractor noun — A contractor hired to perform another contractor's work.
Similar words
- freelancer
- Usually an individual working independently, rather than a company.
- vendor
- Supplies goods or services, rather than necessarily performing contracted work.