Definition of second wind in English English dictionary
When you get your second wind, you become able to continue doing something difficult or energetic after you have been tired or out of breath. Finding a second wind, he rode away from his pursuers
{i} renewed energy or vigor after a period of mental or physical effort and exertion; renewed spirit or energy in order to go on with an undertaking already started
the return of relatively easy breathing after initial exhaustion during continuous exertion renewed energy or strength to continue an undertaking; "She had dinner and got a second wind to finish painting"; "the employers, initially taken by surprise at the pace of developments, regained their second wind