1, 2. Peep, peek, peer mean to look through, over, or around something. To peep or peek is usually to give a quick look through a narrow aperture or small opening, often furtively, slyly, or pryingly, or to look over or around something curiously or playfully: to peep over a wall; to peek into a room. Peek is often associated with children's games. To peer is to look continuously and narrowly for some time, especially in order to penetrate obscurity or to overcome some obstacle in the way of vision: The firefighter peered through the smoke.

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