What is the difference between an evening dress and an evening gown?

The difference between an evening dress and an evening gown is length. An evening gown is generally a full-length garment that falls between the ankles and the floor. An evening dress is a semi-formal or formal dress designed to be worn at night or on special occasions. Evening gowns are one type of evening dress, and you can also find examples with mini, knee-length and midi-length hemlines. Shop a wide range of evening gowns and other evening dresses on 1stDibs.