Below is the definition for the word you requested, useful for Scrabble and other word games. To find more definitions please use the dictionary page.
an involuntary intake of breath through a wide open mouth; usually triggered by fatigue or boredom; "he could not suppress a yawn"; "the yawning in the audience told him it was time to stop"; "he apologized for his oscitancy"
utter a yawn, as from lack of oxygen or when one is tired; "The child yawned during the long performance"
be wide open; "the deep gaping canyon"
showing lack of attention or boredom; "the yawning congregation"
gaping open as if threatening to engulf someone or something; "the yawning mine shaft"; "a yawning abyss"
with the mouth wide open indicating boredom or sleepiness; "a yawning congregation"