noun
knowledge of what to do in any situation; tact
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She demonstrated her savoir faire at the diplomatic event, impressing all the guests with her grace and poise.
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He has a natural savoir faire when it comes to socializing and making people feel comfortable.
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That guy has serious savoir faire when it comes to chatting up girls at the bar.
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The chef's culinary savoir faire was evident in the exquisite presentation and flavors of the dish.