ADJ. big, deep, great, heavy, huge | little, small, soft | long | heartfelt | resigned, weary | exaggerated | audible There was an audible sigh of relief when the news came through that nobody was hurt. | collective
VERB + SIGH breathe, give, heave, let out I breathed a sigh of relief. | repress, stifle, suppress | hear
SIGH + VERB escape sb A weary sigh escaped him.
PREP. on a ~ She let out her breath on a sigh. | with a ~ ‘I suppose we'd better get back to work,’ he said with a heavy sigh. | ~ of She gave a deep sigh of contentment.
PHRASES a sigh of relief > Note at SOUND
ADV. deeply, heavily She sighed heavily and sat down. | softly | audibly, gustily, loudly, noisily | inwardly | a little | contentedly, happily She looked at her son and sighed happily. | impatiently | resignedly | wearily He sighed wearily as he looked at the pile of work.
PREP. in He sighed in exasperation. | with We sighed with relief when the noise stopped.