1. [ verb ] utter a yawn, as from lack of oxygen or when one is tired

"The child yawned during the long performance"

Related terms: breathe
2. [ noun ] (biology,medicine) an involuntary intake of breath through a wide open mouth; usually triggered by fatigue or boredom
Synonyms: oscitancy yawning oscitance

"he could not suppress a yawn" "the yawning in the audience told him it was time to stop" "he apologized for his ostinancy"

Related terms: reflex inhalation pandiculation
3. [ noun ] Last name, frequency rank in the U.S. is 13368
4. [ verb ] be wide open
Synonyms: yaw gape

"the deep gaping canyon"

Related terms: be
Similar spelling:   Yan