boy; young male
General term for a boy or young male, similar to English 'boy'. Used in casual contexts or as a form of address.
That boy is good at soccer, isn't he?
Boy, come here.
Refers to male service staff in hotels or restaurants, such as bellboys, porters, or waiters. Often used in compounds like ベルボーイ or ホテルボーイ.
I had the hotel bellboy carry my luggage.
I called the waiter at the restaurant and ordered.
doorman; door attendant