1
- a stout seed- or fruit-eating bird with a small head, short legs, and a cooing voice, typically having grey and white plumage鸽子。参见DOVE1（义项1）。
1.1
- Family Columbidae: numerous genera and species.鸠鸽科：众多属及众多种。
1.2
- （亦作domestic或feral pigeon）a pigeon descended from the wild rock dove, kept for racing, showing, and carrying messages, and common as a feral bird in towns家鸽。
2
- informal, chiefly US a gullible person, especially someone swindled in gambling or the victim of a confidence trick〈非正式, 主美〉（容易）上当受骗的人（尤指赌博中被骗的人或骗局中的受害者）。
3
- military slang an aircraft from one's own side〈军俚〉己方飞机。
词源
late Middle English: from Old French pijon, denoting a young bird, especially a young dove, from an alteration of late Latin pipio（n-）, young cheeping bird of imitative origin.