(n): an athlete who is skilled in gymnastics
(n): a glass with a flat bottom but no handle or stem; originally had a round bottom
(n): a container for holding liquids while drinking
(n): a movable obstruction in a lock that must be adjusted to a given position (as by a key) before the bolt can be thrown
(n): any structure that makes progress difficult
(n): pigeon that executes backward somersaults in flight or on the ground
(n): domesticated pigeon raised for sport or food
