Breathing while [[sleepy]] or [[bored]]. Characterized visually by [[open mouth|opening one's mouth]] wide and having [[half-closed eyes|half-]] or [[closed eyes|fully-closed eyes]]. May sometimes include [[tears]], since yawning can cause excess tears to spill out of the face. Often appears alongside [[stretching]].
あくび 欠伸 アクビ 打哈欠