peep

ot noun

1. A feeble utterance or complaint. I don't want to hear a peep out of you!
2. The first partial appearance of something; a beginning to appear. the peep of day
3. A quiet sound, particularly one from a baby bird.
4. The sound of a steam engine's whistle; typically shrill.

fe’l verb

1. To look, especially through a narrow opening, or while trying not to be seen or noticed. The man peeped through the small hole.
2. To make a soft, shrill noise like a baby bird.
3. To speak briefly with a quiet voice.
4. To begin to appear; to look forth from concealment; to make the first appearance.