n. 25B6; verb
she sighed with relief : BREATHE OUT, exhale; groan, moan.
the wind sighed in the trees : RUSTLE, whisper, murmur, sough.
he sighed for days gone by : YEARN, long, pine, ache, grieve, cry for/over, weep for/over, rue, miss, mourn, lament, hanker for/after.