tumbler

Definitions of tumbler in various dictionaries:

noun - a gymnast who performs rolls and somersaults and twists etc.

noun - a glass with a flat bottom but no handle or stem

noun - a movable obstruction in a lock that must be adj usted to a given position (as by a key) before the bolt can be thrown

noun - pigeon that executes backward somersaults in flight or on the ground

One that tumbles, especially an acrobat or a gymnast.

A drinking glass, originally with a rounded bottom.

A flat-bottomed glass having no handle, foot, or stem.

The contents of such a drinking glass.

A toy made with a weighted, rounded base so that it can rock over and then right itself.

One of a breed of domestic pigeons characteristically tumbling or somersaulting in flight.

A piece in a gunlock that forces the hammer forward by action of the mainspring.

The part in a lock that releases the bolt when moved by a key.

The drum of a clothes dryer.

A tumbling box.

A projecting piece on a revolving or rocking part in a mechanism that transmits motion to the part it engages.

The rocking frame that moves a gear into place in a selective transmission, as in an automobile.

verb - to fall or roll end over end