"Heaved sigh of relief" is a common phrase used to describe a feeling of relief or satisfaction after a stressful situation. There are several synonyms that can be used interchangeably to convey the same meaning. Some of these include "exhaled a sigh of relief," "breathed a sigh of relief," "let out a sigh of relief," or simply "sighed with relief." Depending on the context of the situation, other phrases such as "felt a weight lifted off my chest" or "released the tension" could also be used to describe the feeling of relief. Regardless of the specific phrasing, each synonym carries the same sense of relief and calmness after a period of anxiety.