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general::
Phrase(s): peek in(to something)
to steal a quick glimpse into something. • Sam peeked into the oven to see what was cooking. • Laura opened the oven door and peeked in., Phrase(s): peek in (on someone or something)
to glance quickly into a place to see someone or something. • Would you please peek in on the baby?
McGrawhill's American Idioms And Phrasal Verbs