From Longman Dictionary of Contemporary Englishbeaubeau /bəʊ $ boʊ/ noun (plural beaux /bəʊz $ boʊz/ or beaus) [countable] old-fashioned1GIRLFRIEND/BOYFRIENDa woman’s close friend or lover2DCMANa fashionablewell-dressed manExamples from the Corpusbeau• Marjorie brought a beau to Prides, and Margarett flirted with him, even, Betty thought, took him to bed.• Margarett took a beau to their apartment for dinner and scandalized her old friends by visibly holding his hand.• She'd arrived in the sidecar of Miss Brahms's currentbeau and her coiffure had suffered terriblepunishment as a result.• I was very shy but his mischievousgrin put me at my ease and we strolled along behind Sally and her beau.Originbeau(1600-1700)Frenchbeau"beautiful", from Latinbellus; → BEAUTY