what yawning means
(jÉËn) vb. 1. (Physiology) (intr) to open the mouth wide and take in air deeply, often as in involuntary reaction to tiredness, sleepiness, or boredom. 2. (tr) to express or utter while yawning. 3. (intr) to be open wide as if threatening to engulf (someone or something): the mine shaft yawned below.