Languages › French Learn the French Word Vouvoyer Share Flipboard Email Print French Vocabulary Pronunciation & Conversation Grammar Resources For Teachers By ThoughtCo Updated May 26, 2017 This is a very interesting word that the French may use to reprimand someone, or to remind them, or inform them of status. Essentially, vouvoyer (pronounced "voo vwa yay") means to use "vous" with someone. "Vous" is the more formal version of "you", whereas "tu" is informal. Example Il faut vouvoyer le chef.You should use "vous" with the boss (equivalent to saying "call him sir"). Related Le vouvoiement - the action of using "vous" with someone.