second wind

UK: /ˌsɛkəndˈwɪnd/ US: /ˈsɛkənd ˈwɪnd/ ,(wind)

WordReference Random House Learner's Dictionary of American English © 2026

sec•ond wind /ˈsɛkənd ˈwɪnd/  n. [countable]

1. the return of ease in breathing after being exhausted because of physical exertion, as in running:
   got his second wind after the first few miles of the race.
2. the energy for a new effort to continue:
   Getting a new computer gave her a second wind in completing the project.

WordReference Random House Unabridged Dictionary of American English © 2026

sec′ond wind′  (wind), 

1. the return of ease in breathing after exhaustion caused by continued physical exertion, as in running.
2. the energy for a renewed effort to continue an undertaking.

• 1895–1900

Collins Concise English Dictionary © HarperCollins Publishers::

second wind / wɪnd/ noun

1. the return of the ability to breathe at a comfortable rate, esp following a period of exertion
2. renewed ability to continue in an effort