look quickly and furtively at something, especially through a narrow opening

his door was ajar and she couldn't resist peeping in

a quick or furtive look

Jonathan took a little peep at his watch

a feeble, high-pitched sound made by a young bird or mammal

a small sandpiper or similar wading bird

the peeps have returned to Fundy

a group of chickens

a peep of chickens pecking and scratching around the gate

make a brief, high-pitched sound

Don peeped on his whistle