au fait /ofɛt, fɛ/
Au fait Expert; skillful; well instructed.
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au fait
adj : being up to particular standard or level especially in being
up to date in knowledge; "kept abreast of the latest
developments"; "constant revision keeps the book au
courant"; "always au fait on the latest events"; "up on
the news" [syn: abreast of(p), au courant, up
on(p)]