1. A man who is the lover of a man or woman
   "if I'd known he was her beau I wouldn't have asked";
   - boyfriend, fellow, swain [archaic], boyf [Brit, informal]
    
2. A man who is much concerned with his dress and appearance
   "The beau spent hours preening in front of the mirror before attending the social gathering";
   - dandy, dude [informal], fop [archaic], gallant [archaic], swell [informal], fashion plate, clotheshorse [informal]

Sounds like: bow, beaux

Derived forms: beaux, beaus

Type of: adult male, bozo [N. Amer, informal], cat [N. Amer, informal], chappie [Brit, informal], geezer [Brit, informal], guy [informal], hombre [N. Amer, informal], lover, man, sod [informal]

Encyclopedia: Beau