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demoiselle d'honneur and demoiselle d’honneur.
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robe de dîner, formel, robe de soirée, formelle, costume d'affaires, costume d’affaires, robe de cocktail, and gaine.
Ken Jeong (from the films "Role Models", "The Hangover" and "Knocked Up") explains this hilarious attack on stereotypes: "I dont know if toi know, but I was a doctor before Knocked Up...