v. & n.
v. 1 intr. (as a reflex) open the mouth wide and inhale esp. when sleepy or bored. 2 intr. (of a chasm etc.) gape, be wide open. 3 tr. utter or say with a yawn.
n. 1 an act of yawning. 2 colloq. a boring or tedious idea, activity, etc. yawner n. yawningly adv.
[ OE ginian, geonian ]