communication or cooperation that facilitates a close working relationship between people or organizations.
the head porter works in close liaison with the reception office
the binding or thickening agent of a sauce, often based on egg yolks.
A liaison of egg yolk and/or a little cream can be added at the end to enrich it and make it even more velvety.
(in French and other languages) the sounding of a consonant that is normally silent at the end of a word because the next word begins with a vowel.
Perhaps, in the final analysis, French liaison and linking in English may not be so different after all.