enter

box (container) / box (compartment in a theater) / booth (enclosed table with seats at a restaurant)

(adverbial particle, dismissive, derogatory) emphasizes disgust, contempt, or otherwise negative feelings of the speaker: whatever

to go in; to come in / 要る: to be necessary, to be required

to enter, go into, get into a place or a thing / to join a group or organization / to be contained (in), to be included (in) / to be a member of a group, set, category

whatchamacallit, X

What? What did you say?

(graphical user interface) combo box

telephone booth

(computing) bounding box