Similar words: faith, faithful, faithless, faithfully, unfaithful, fait accompli, faithfulness, article of faith. Meaning: [‚əʊ 'feɪ] 
adj. being up to particular standard or level especially in being up to date in knowledge.
adj. being up to particular standard or level especially in being up to date in knowledge. 
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1. Are you au fait with the rules of the game?
2. I'm not really au fait with the computer system yet.
3. I'm new here so I'm not completely au fait with the system.
4. Au Fait is willing to create prosperous tomorrow together with customers of both new and old.
5. She appears to be au fait to the ways of the world though she is young.
6. It's my first week here so I'm not yet au fait with the system.
7. It's my first week here so I'm not completely au fait with the system.
8. I was new at the school and not yet au fait with its customs.
More similar words: faith, faithful, faithless, faithfully, unfaithful, fait accompli, faithfulness, article of faith, faithlessness, chauffeur, manufacture, manufacturer, manufactured, manufacturing, ait, gait, bait, wait, fail, fain, fair, trait, await, plait, FAIRS, fairy, faint, wait for, wraith, gaiter.