1. (verb)yawn, yawning, oscitance, oscitancy an involuntary intake of breath through a wide open mouth; usually triggered by fatigue or boredom Synonyms: oscitancy, oscitance, yawn, yawning
2. (verb)yawn utter a yawn, as from lack of oxygen or when one is tired Synonyms: yaw, gape
3. (verb)gape, yawn, yaw be wide open Synonyms: gawk, gawp, yaw, goggle, yawn, gape