Full evening dresses are a popular and elegant choice for formal events. However, there are many synonyms for this type of attire that can add variety to your formal wardrobe. One alternative is a ball gown, which typically features a full skirt and a fitted bodice. A mermaid dress is another option that is form-fitting through the waist and hips and flares out at the bottom like a mermaid's tail. A sheath dress is a sleek and straight option that hugs the body and often features a high neckline. A trumpet dress has a fitted bodice and flares out from the mid-thigh. Finally, a maxi dress can offer full-length coverage with a more casual vibe.