peep

peep is a Verb

Definition:

[1] To cry, as a chicken hatching or newly hatched; to chirp; to cheep. There was none that moved the wing, or opened the mouth, or peeped. Is. x. 14.

[2] To begin to appear; to look forth from concealment; to make the first appearance. When flowers first peeped, and trees did blossoms bear. Dryden.

[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.