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Definitions from WordNet

Definitions from the Web

Jumping Jack

Noun (Exercise):

A jumping jack is a calisthenic exercise that involves jumping to a position with the legs spread wide and the hands touching overhead, then returning to a position with the feet together and the arms at the sides.

Sample sentence: I do ten jumping jacks as part of my daily exercise routine.

Noun (Firework):

A jumping jack is a small firework consisting of a cardboard tube filled with gunpowder and mounted on a pin to create a jumping and crackling motion when ignited.

Sample sentence: The kids were amused by the jumping jacks fireworks on New Year's Eve.

Noun (Construction):

In construction, a jumping jack is a machine used for compacting soil or asphalt by repeatedly raising and dropping a heavy plate or pad.

Sample sentence: The construction crew used a jumping jack to compact the soil before laying the foundation.

Noun (Clothing):

A jumping jack, in the context of clothing, is a one-piece garment for children, typically with a bib and shoulder straps, worn over a shirt or blouse.

Sample sentence: The adorable toddler was wearing a colorful jumping jack at the playground.

Noun (Military):

In the military, a jumping jack refers to a parachute drop where a paratrooper jumps out of an airplane and descends using a parachute.

Sample sentence: The paratroopers completed a successful jumping jack during their training exercise.

Verb:

To jump like a jumping jack, often with excitement or enthusiasm.

Sample sentence: The children were jumping jack in the play area, full of energy and joy.