少年

(1)a boy or man; "that chap is your host"; "there's a fellow at the door"; "he's a likable cuss"; "he's a good bloke"

(2)少年または男

(3)a young person, not fully developed

(4)若い人

(5)a youthful male person; "the baby was a boy"; "she made the boy brush his teeth every night"; "most soldiers are only boys in uniform"

(6)若い男

(7)a male child (a familiar term of address to a boy)

(8)男の子供（男の子への親しみを込めた呼びかけ語）

(9)a juvenile between the onset of puberty and maturity

(10)思春期の入り口と成年の間にいる若者