Open English Wordnet
Nouns
(n)cheep, peepthe short weak cry of a young bird Verbs
(v)peeplook furtively“He peeped at the woman through the window” (v)peepcause to come into view“he peeped his head through the window” (v)peepspeak in a hesitant and high-pitched tone of voice (v)peepappear as though from hiding“the new moon peeped through the tree tops”