Synonyms of liaison in English:

liaison


See definition of liaison

noun

1‘the Bank of England works in very close liaison with the Treasury’

SYNONYMS
cooperation, contact, association, connection, collaboration
communication, interchange, affiliation, alliance, partnership, link, linkage, tie-up, hook-up

2‘Dave was my White House liaison and all-round troubleshooter’

SYNONYMS
intermediary, mediator, middleman, contact, contact man, contact person, contact woman, link, linkman, linkwoman, linkperson, go-between, representative, agent, interceder, factor

3‘she abandoned her loyalty to her absent husband in favour of a liaison with William’

SYNONYMS
love affair, affair, relationship, romance, attachment, fling, intrigue, amour, affair of the heart, involvement, amorous entanglement, romantic entanglement, entanglement
flirtation, dalliance
informal hanky-panky
British informal bit on the side, carry-on