yawn noun
ADJ. big, deep, huge | noisy | stifled
VERB + YAWN stifle, suppress He struggled to stifle a yawn. | give The little boy gave a huge yawn. | conceal He tried to conceal his yawn behind his hand.
PREP. with a ~
yawn verb
ADV. hugely, widely He sat up and yawned hugely.
VERB + YAWN make sb | hear sb
PREP. at He got fed up of people yawning at him when he talked about his job.
You can also check other dicts: yawn (English, 中文解释 ), wordnet sense, Collins Definition