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au fait

American  
[oh fe] / oʊ ˈfɛ /

adjective

French.
  1. having experience or practical knowledge of a thing; expert; versed.


au fait British  
/ o fɛ, əʊ ˈfeɪ /

adjective

  1. fully informed; in touch or expert

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of au fait

Literally, “to the fact”

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

However, Nelson is less au fait with Asian finance and politics than his predecessor, Mark Tucker, a veteran of Hong Kong’s insurance industry.

From The Wall Street Journal • Dec. 4, 2025

But perhaps the McLaren driver was not completely au fait with Max Verstappen’s day.

From BBC • Mar. 22, 2024

Those who are au fait with the paranormal tend not to be the heroes in stories like these.

From The Guardian • Nov. 4, 2016

"In preparation I've been to see an old friend who's getting me au fait with the rules of magic. "The show is going to have a big fantastical element.

From BBC • Jan. 26, 2016

He lived at Breslau as king, and he kept spies at the court of his Sovereign, who were to keep him au fait of the state of things.

From Pictures of German Life in the XVIIIth and XIXth Centuries, Vol. II. by Freytag, Gustav