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 ~
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.