- 1[intransitive] liaise (with somebody) (especially British English) to work closely with somebody and exchange information with them He had to liaise directly with the police while writing the report. The tax office liaises closely with our department on such matters.
- 2[intransitive] liaise (between A and B) to act as a link between two or more people or groups Her job is to liaise between students and teachers. Word Origin 1920s (originally military slang): back-formation from liaison.
BrE BrE//liˈeɪz//; NAmE NAmE//liˈeɪz//Verb Forms present simple I / you / we / they liaise
BrE BrE//liˈeɪz//; NAmE NAmE//liˈeɪz//he / she / it liaises
BrE BrE//liˈeɪzɪz//; NAmE NAmE//liˈeɪzɪz//past simple liaised
BrE BrE//liˈeɪzd//; NAmE NAmE//liˈeɪzd//past participle liaised
BrE BrE//liˈeɪzd//; NAmE NAmE//liˈeɪzd//-ing form liaising
BrE BrE//liˈeɪzɪŋ//; NAmE NAmE//liˈeɪzɪŋ//