revolve, turn around, change
転 centers on circular motion or a shift in state: revolving, turning around, or changing from one thing to another.
operation (of a machine); running; working
bicycle; bike
rotation; revolution; turn; spin
reversal (of a situation); turnaround; turnabout; turning the tables; sudden change; comeback
conversion; diversion; changeover; commutation; switchover
moving; relocation; change of address
change of job; change of occupation; career change
resale
transfer (of a call, patient, etc.); forwarding (a letter, email, etc.); redirection
to fall down; to fall over
to roll; to tumble
fall; tumble; spill; plunge; dive
rolling over; turning over
fall; falling down; tumbling; toppling (over)
moving (location, with the times, etc.); change; transition
job transfer; job relocation; intra-company transfer
conversion; shift; about-face; switch
diversion; putting something to another use
moving; changing residence; change of address
overturning; capsizing
changing for the better
changing (job, career, lifestyle, social position, beliefs, etc.)
moving from place to place; being passed around repeatedly
turning point
転 is the modern simplified form of 轉. The older form combines 車 (vehicle) with 專, which likely contributed the sound and the idea of turning or revolving. The modern right side 云 is a simplification.
A vehicle 車 with a swirling cloud-like shape 云 on the right: picture a car spinning its wheels and kicking up a cloud of dust as it turns around.
For テン, imagine a car turning ten times in a row: ten -> テン, and each turn revolves the vehicle.