to stare with open mouth, as in wonder.

to open the mouth wide involuntarily, as the result of hunger, sleepiness, or absorbed attention.

to open as a gap; split or become open wide.

a wide opening; gap; breach.

an act or instance of gaping.

a stare, as in astonishment or with the mouth wide open.

a yawn.

Zoology . the width of the open mouth.

verb

close

verb

beam , bore , eye , eyeball , focus , get a load of , get an eyeful , give the eye , glare , gloat , goggle , look , ogle , peer , rubberneck * , size up * , stare , take in * , wonder , yawp * , cleave , crack , dehisce , divide , frondesce , gap , part , split , yaw , yawn , gawk , gasp , gaze , oscitate , rubberneck

noun

stare