From Longman Dictionary of Contemporary Englishcontract in phrasal verb British English1 BBAGREE contract somebody/something ↔ in to arrange for a person or company outside your own organization to come in and do a particular job We contract in cleaning services.2 formal to agree officially to take part in something The rules require all members to contract in. → contractFrom Longman Business Dictionarycontract in phrasal verb [intransitive] British English to agree officially to take part in an arrangementThe company pension scheme was started last June, and since then 1500 employees have contracted in. → contract→ See Verb table
