IPA: /ˈsʌbˌkɒntræktər/
KK: /sʌbˈkɒntræktər/
A person or company that is hired to do part of a job that another person or company has agreed to do.
The main contractor hired a subcontractor to handle the electrical work on the project.
Subcontractor → It is formed from "sub-" (meaning under or below) and "contractor" (from Latin "contractor", meaning one who enters into a contract). The word "subcontractor" refers to a person or company that enters into a contract to perform part of the work that another contractor has agreed to complete.
Think of someone working 'under' ('sub-') the main contractor, fulfilling part of the contract.