verb
(intransitive) To open the mouth widely and take a long, rather deep breath, often because one is tired or bored, and sometimes accompanied by pandiculation.
To say while yawning.
To present a wide opening; gape.
(obsolete) To open the mouth, or to gape, through surprise or bewilderment.
(obsolete) To be eager; to desire to swallow anything; to express desire by yawning.
noun
The action of yawning; opening the mouth widely and taking a long, rather deep breath, often because one is tired or bored.
(colloquial) A particularly boring event.