1 : a male animal (such as a horse) kept for breeding [count] ▪ retired racehorses being used as studs [noncount] ▪ retired racehorses at stud ▪ a horse that has been put out to stud 2 [count] informal : a very attractive and masculine man : a man who has sexual relations with many women
▪ She left her husband and ran off with some young stud.
▪ She left her husband and ran off with some young stud.
— compare 2stud





