sigh of reliefOwen breathed a sigh of relief.
breathe a sighParents may well breathe a sigh of relief at that news.
long sighShe gave another long sigh.
huge sighShe gave a huge sigh.
deep sighHarry gave a deep sigh.
give a sighWe give a sigh of relief — father was not killed after all.
heave a sigh
great sighHe gave a great sigh.
audible sighThere was an almost audible sigh of relief around the world that someone had been caught tampering with the dictionary.
small sighThen she gave a small sigh.
sigh soHis sigh sounded long, and really rather weary.
out a sighRobyn let out a sigh and closed her eyes with relief.
sigh of resignationThe man gave a sigh of resignation.