key

(computing) key / (music) key

key (tool for opening or locking something) / key; clue (important fact for solving something) / lock

platform door; platform screen door

(rail transport) selective door operation

swing door

Alternative form of 言い回す

Used other than figuratively or idiomatically: see 轆轤, 回す. / (figuratively) to make a similar pose with both hands, used when explaining something during a speech or similar event

to poke around

use one thing for many purposes / work someone hard