intransitive verb

1. to make the short, high-pitched cry of a young bird or chick; chirp; cheep
2. to utter a sound or speak in a small, weak voice, as from fear

Etymology: ME pepen: orig. echoic

noun

1. a short, high-pitched sound; chirp; cheep
2. the slightest vocal sound heard not a peep from him

intransitive verb

1. to look through a small opening or from a place of hiding
2. to peer slyly or secretly; take a hasty, furtive look
3. to come into view; show or appear gradually or partially, as though from hiding stars peeped through the clouds

Etymology: ME pepen, ? akin to piken, peek

transitive verb

noun

1. a brief, hasty look or restricted view; secret or furtive glimpse or glance
2. the first appearance; crack, as of dawn