1. To look intently and fixedly: eye, gawk, gaze, goggle, ogle, peer1, stare. Idioms: gaze open-mouthed, rivet the eyes on. SeeSEE. 2. To open the mouth wide with a deep inward breath, as when tired or bored: yawn. SeeMOUTH. 3. To open wide: gap, yawn. SeeWIDE.