This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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n. An instance or a means of communication between different groups or units of an organization, especially in the armed forces.

n. One that maintains communication: served as the President's liaison with Congress.

n. A close relationship, connection, or link.

n. An adulterous relationship; an affair.

n. Linguistics Pronunciation of the usually silent final consonant of a word when followed by a word beginning with a vowel, especially in French.

n. Communication between two parties or groups.

n. Co-operation, working together.

n. A relayer of information between two forces in an army or during war.

n. A tryst, romantic meeting.

n. An illicit sexual relationship or affair.

n. A sandhi in which a normally silent final consonant is pronounced when the next word begins with a vowel.

v. To liaise.

n. A union, or bond of union; an intimacy; an interrelationship.

n. An illicit sexual relation between a man and a woman; a sexual afffair.

n. A process of communication between parts of an organization or between two organizations acting together for a common purpose.

n. A person whose function it is to maintain such communication.

n. A pronunciation of a consonant sound that would be otherwise silent, such as the final consonant of certain French words, when the following word begins with a vowel sound.

n. A bond of union; an intimacy; entanglement; commonly, an illicit intimacy between a man and a woman.

n. In the French language, the linking or joining in pronunciation of a final consonant, usually silent, to the succeeding word when that begins with a vowel: for example, vous (vö) and avez, when coming together, are pronounced vö zavā.

n. In cookery, a thickening, generally of beaten eggs, intended to combine or amalgamate the ingredients of a dish.

n. a usually secretive or illicit sexual relationship

n. a channel for communication between groups

"Now, often, CIA agents have what they call a liaison relationship with the host government."

sexual relationship    line    communication channel    channel   

liaise    ligation   

intimacy    interrelationship   

meson    pi-meson   

coördination    reconnaissance    logistic    evacuation    airlift    airspace    coöperation    headquarters    coordinator    brigade