contract inphrasal verb
to arrange for a person or company outside your own organization to come in and do a particular job:
We contract in cleaning services.
to agree officially to take part in something:
The rules require all members to contract in.
contract outphrasal verb
to arrange to have a job done by a person or company outside your own organization
contract something ↔ out to
We contracted the catering out to an outside firm.
2BEC British English
to agree officially not to take part in something such as a pension plan