"beau" in the noun sense
1. boyfriend, fellow, beau, swain
a man who is the lover of a man or woman
"if I'd known he was her boyfriend I wouldn't have asked"
"When the law changed, Pet could finally married his long-time boyfriend Jim"
2. dandy, dude, fop, gallant, sheik, beau, swell, fashion plate, clotheshorse
a man who is much concerned with his dress and appearance
Source: WordNet® (An amazing lexical database of English)
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