BOY

noun

1. A young male.
2. (diminutive) A male child: a son of any age.
3. (diminutive) A male of any age, particularly one rather younger than the speaker.

verb

1. To use the word “boy” to refer to someone.
2. To act as a boy (in allusion to the former practice of boys acting women's parts on the stage).

interjection

1. Exclamation of surprise, pleasure or longing.