sigh

nouns

an utterance made by exhaling audibly

sigh, suspiration

a sound like a person sighing

"she heard the sigh of the wind in the trees"

sigh

is a type of (narrower)

the sudden occurrence of an audible event

"the sound awakened them"

heave or utter a sigh; breathe deeply and heavily

"She sighed sadly"

sigh, suspire

utter with a sigh

sigh

is a type of (narrower)

express audibly; utter sounds (not necessarily words)

"She let out a big heavy sigh"; "He uttered strange sounds that nobody could understand"