Au fait – Having a good or detailed knowledge

(Pronounced oh-fay)

To remember the definition of the word au fait, use the following mnemonic:

The ogre never fails (au fait) an exam. He had a detailed knowledge of many subjects.

Examples of au fait in a sentence

Au fait when it comes to ballet, the ballerina now spends time teaching dance classes.

Everyone should get au fait with computers since we are entering such a digital era.

In his first week at work he wasn't completely au fait with the system they used.