swing into action

Idioms  

1. Energetically start doing something, as in Come on, let's swing into action before the others arrive. This idiom uses swing in the sense of “move vigorously.”

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Example Sentences

See Examples For:

swing into action

Now that a super-eruption appears imminent with high confidence, world leaders swing into action.

From Science Daily ● Sep. 22, 2026

Memory B cells are one of those layers, cells that live for years in the bone marrow, ready to swing into action and produce more antibodies when needed.

From Seattle Times ● Jan. 2, 2022

Studies indicate that glia, the cells that nurture neurons in the CNS, swing into action in response to damage to peripheral nerves.

From Scientific American ● Oct. 10, 2021

Oppenheim said NBC News anticipated Trump’s remarks and was ready to swing into action.

From Los Angeles Times ● Nov. 4, 2020

The city’s emergency broadcast system, which was supposed to swing into action during a crisis, did not go on the air because "the Sunday-morning staff did not know how to operate the equipment."

From "A Short History of Nearly Everything" by Bill Bryson

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