This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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verb-intransitive. To open the mouth wide with a deep inhalation, usually involuntarily from drowsiness, fatigue, or boredom.

verb-intransitive. To open wide; gape: The chasm yawned at our feet.

v. To utter wearily, while or as if while yawning: yawned his disapproval of the silly venture.

n. The act of yawning.

n. A fatigued or bored response.

n. Informal One that provokes yawns; a bore: The movie was nothing more than one big yawn.

v. To open the mouth widely and take a long, rather deep breath, often because one is tired and sometimes accompanied by pandiculation.

v. To present an opening that appears able to swallow one up, literally or metaphorically:

n. The action of yawning; opening the mouth widely and taking a long, rather deep breath, often because one is tired.

n. A particularly boring event.

verb-intransitive. To open the mouth involuntarily through drowsiness, dullness, or fatigue; to gape; to oscitate.

verb-intransitive. To open wide; to gape, as if to allow the entrance or exit of anything.

verb-intransitive. To open the mouth, or to gape, through surprise or bewilderment.

verb-intransitive. To be eager; to desire to swallow anything; to express desire by yawning.

n. An involuntary act, excited by drowsiness, etc., consisting of a deep and long inspiration following several successive attempts at inspiration, the mouth, fauces, etc., being wide open.

n. The act of opening wide, or of gaping.

n. A chasm, mouth, or passageway.

To gape; open; stand wide.

Specifically

To open the mouth wide.

Involuntarily, as through drowsiness or dullness; gape; oscitate. Compare yawning.

To gape, as in hunger or thirst for something; hence, to be eager; long.

To be open-mouthed with surprise, bewilderment, etc.; be agape.

To open; form by opening.

To express or utter with a yawn.

n. The act of gaping or opening wide.

n. An involuntary opening of the mouth from drowsiness; oscitation. See yawning.

n. An opening; a chasm.

v. utter a yawn, as from lack of oxygen or when one is tired

v. be wide open

n. an involuntary intake of breath through a wide open mouth; usually triggered by fatigue or boredom

"Mark Lieberman, the CEO of TRA, a media marketing company, notices what he calls the yawn effect."

yawned    yawning    yawns   

breathe    respire    suspire    take a breath    be   

Technicolor yawn    multicolour yawn   

gape    oscitate    long   

Amon    Braun    Dawn    Mayon    Quinton    Sean    Shaun    Shawn    Swan    Vaughan   

sigh    chuckle    grunt    snarl    shrug    snore    wail    shake    giggle    splash