gymnastics

noun

1. (used with a plural verb) gymnastic exercises.
2. (used with a singular verb) the practice art, or competitive sport of gymnastic exercises.
3. (used with a plural verb) mental feats or other exercises of skill: Verbal gymnastics.

noun

1. (functioning as singular) practice or training in exercises that develop physical strength and agility or mental capacity
2. (functioning as plural) gymnastic exercises