to open the mouth wide-expressing a desire for food; as, young birds gape.-indicating sleepiness or indifference; to yawn.-to pen or part widely; to exhibit a gap, fissure, or hiatus.-to long, wait eagerly, or cry aloud for something; -- with for, after, or at.-the act of gaping; a yawn.-the width of the mouth when opened, as of birds, fishes, etc.