a revolving door

to open / to make (a hole)

to broaden; to become wide / to develop; to progress; to improve / (of a person) to be enlightened; to be inspired; (perfect tense) to be sharp or clever

Western-style door

to put (something) in / to admit (someone) in / to tuck in (clothing)

potential of 入る (hairu)

strength / power / force

Only used in 多腕バンディット (“multi-armed bandit”)

a fit; something that fits well

to fit / to suit, be fitting, be becoming