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Definitions

swing into action

VERB
buckle down
Synonyms
WEAK
address apply oneself attend to bend concentrate on dedicate oneself to devote oneself to exert oneself get serious give give oneself over to keep close to keep one's mind on knuckle down launch into occupy oneself with pitch in plunge into put one's hand to the plow put one's nose to the grindstone set to take the bull by the horns throw turn
Antonyms
WEAK
be lazy ignore relax

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

If farmers still don’t agree to stop logging or planting avocados, that’s when Cheran’s forestry patrols swing into action.

From Seattle Times • Jan. 27, 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

Weird things happen in August, forcing everyone to swing into action.

From Fox News • Aug. 18, 2020

Photographs of the children show a sweet if sober bunch who seem ready at a moment’s notice to swing into action with brooms and dishcloths.

From "The Devil in the White City" by Erik Larson

From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.