noun
The wheel of a cart.
A gymnastic maneuver whereby the gymnast rotates to one side or the other while keeping arms and legs outstretched, spinning for one or more revolutions.
(UK, historical, obsolete slang) A crown coin; its value, 5 shillings.
(US, historical, obsolete slang) A silver dollar of the larger size produced before 1979.
verb
To perform the gymnastics feat of a cartwheel.
To flip end over end: normally said of a crashing vehicle or aircraft.