What is the meaning of Cartwheel?

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.

A crown coin; its value, 5 shillings.

A silver dollar of the larger size produced before 1979.

To perform the gymnastics feat of a cartwheel.

To flip end over end: normally said of a crashing vehicle or aircraft.

Source: wiktionary.org