Examples from the Web for evening gown
Then, during the evening-gown competition, she tripped on her dress.
Rachel Smith At the Miss Universe 2007 pageant, Miss USA, Rachel Smith, tripped over her hem during the evening-gown competition.Carrie Ann Inaba, Justin Bieber & More Celebrity Stumbles (VIDEO)|The Daily Beast Video|October 24, 2012|DAILY BEAST
She had dressed early because Wendy so loved to see her in her evening-gown, with the necklace George had given her.Peter and Wendy|James Matthew Barrie
When you waken we will try to find a house-dress to replace your evening-gown.Aunt Jane's Nieces in Society|Edith Van Dyne