Some French words and expressions commonly used in English:
Rendez-vous go to
In French, this refers to a date or an appointment, in English we can use it as a noun or a verb (let’s rendez-vous at 8pm).
Savoir-faire knowing how to do
Synonymous with tact or social grace.
Savoir-vivre to know how to live
In English, refers to an elegant party.
Souvenir memory, keepsake
Voilà ! There it is
Also: Par Excellence