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be wide open; "the deep gaping canyon"
showing lack of attention or boredom; "the yawning congregation"
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"
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"
utter a yawn, as from lack of oxygen or when one is tired; "The child yawned during the long performance"