Definition from Wiktionary, the free dictionary
breathe a sigh of relief
- (idiomatic) to be relieved; to feel relief.
2011 September 29, Jon Smith, “Tottenham 3 - 1 Shamrock Rovers”, in BBC Sport:
- And the home fans breathed a huge sigh of relief barely two minutes later when Andros Townsend's cross was finished by Defoe.