3. To look cautiously or slyly; to peer, as through a crevice; to pry. eep through the blanket of the dark. (Shak) From her cabined loophole peep. (milton) Peep sight, an adjustable piece, pierced with a small hole to peep through in aiming, attached to a rifle or other firearm near the breech.
Origin: Of imitative origin; cf. OE. Pipen, F. Piper, pepier, L. Pipire, pipare, pipiare, D. & G. Piepen. Senses 2 and 3 perhaps come from a transfer of sense from the sound which chickens make upon the first breaking of the shell to the act accompanying it; or perhaps from the influence of peek, or peak. Cf. Pipe.
1. The cry of a young chicken; a chirp.
4. (Science: zoology) Any small sandpiper, as the least sandpiper (Trigna minutilla). The European meadow pipit (Anthus pratensis). Peep show, a small show, or object exhibited, which is viewed through an orifice or a magnifying glass. Peep-o'-day boys, the irish insurgents of 1784; so called from their visiting the house of the loyal Irish at day break in search of arms.