noun
peephole
PEEP-hohl
noun
1
A small opening, often in a door, that lets someone look out without being seen.
"She checked the peephole before opening the door to a stranger."
How to Use Peephole
Learner’s notesIn plain EnglishThe small viewing hole in a door used to see who's outside.
Common pairings
look through the peephole
Word Forms
peepholes plural
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She checked the _____ before opening the door to a stranger.
Etymology
A compound of "peep" and "hole."