I am a native speaker, and I never use that expression. It may be idiosyncratic in the group you work with. CJ
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I use this word all the time.
It is used regularly in fields of work such as law, governance, civil/public service, and the military.
I have never heard anyone substitute something as nebulous and vague as "interface with" for the term "liaise with".... it sounds like the incorporation of a piece of computer / techno jargon into ordinary spoken English.
If I were told to "int