transmission, gearbox (mechanical assembly of gears that changes the torque and speed of shaft rotations)

a car, an automobile, a carriage, a cart / a wheel, a caster / something wheel-shaped / a style of 紋 (mon, “family crest”) / short for 車海老 (kuruma ebi): a prawn

vehicle

vehicle / train car

used to count vehicles

stairs used in emergencies

state of emergency (unusually difficult or dangerous situation)

display

input device

Rube Goldberg machine