to breathe in a noisy way through your mouth and nose while you are asleep:
He could hear the old man snoring.
I heard a snore and knew he'd fallen asleep.
WORD FOCUS: breathe WORD FOCUS: breathe to breathe in:inhaleformal to breathe out:exhaleformal to breathe noisily:sniff, snore (when sleeping) snort, sigh to breathe with difficulty:gasp, pant, wheeze, be short of breath, be out of breath to be unable to breathe:choke, suffocatebreathe ➔ See alsobreathe
Definition from the Longman Dictionary of Contemporary English Advanced Learner's Dictionary.