A type of tailcoat with two long tapering tails.ᵂᵖ
The forked tail of a swallow.
Anything, such as a burgee, of a similar forked shape.
Any of various butterflies of the family Papilionidae, many of which have a long extension to each hindwing.
The most formal kind of eveningwear for men, consisting of an evening tailcoat, trousers with strips of braid down the side seams, white stiff-fronted shirt, white bow tie and waistcoat with or without sash.
A dress code specifying white tie for men and ball gown or evening dress for women, or, alternatively, full military dress or national costume.