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

It didn’t take long for Google and Facebook to swing into action.

From Seattle Times • Dec. 21, 2022

But your body will detect them and think an infection is underway, prompting the immune system to swing into action, Pride said.

From Los Angeles Times • Dec. 14, 2021

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

The video was captioned, “Spider-Man will soon swing into action above Avengers Campus opening this summer at Disney California Adventure Park.”

From Fox News • Feb. 4, 2020

In the spring of 1933, as Hermann Muller began his work at the Kaiser Wilhelm Institute in Berlin, he watched Nazi “applied biology” swing into action.

From "The Gene" by Siddhartha Mukherjee