1
- chiefly N. Amer. a cupboard or wardrobe, especially one tall enough to walk into〈主北美〉（尤指高大的）碗橱; 衣橱。
1.1
- a small room, especially one used for storing things小房间（尤指储物间）。
2
- archaic a toilet〈古〉盥洗室, 厕所。
3
the closet
used to refer to a state of secrecy or concealment, especially about one's homosexuality（尤指对同性恋身份的）保密; 隐藏：lesbians who had come out of the closet.
公布身份的女同性恋者们。
closeted, closeting
with obj.（常作be closeted）shut (someone) away, especially in private conference or study把（某人）关起来（尤指关入私人议事室或书房）：he was closeted with the king
他与国王在密室中商谈
he returned home and closeted himself in his room.
他回家把自己关进房间。
词源
late Middle English (denoting a private or small room)： from Old French, diminutive of clos 'closed' （see CLOSE1）.