peephole

peep +‎ hole

• (UK) IPA^(key): /piːphəʊl/
• (US) IPA^(key): /piphoʊl/, IPA^(key): /pʰiphoʊɫ/

• Audio (US)

  (file)

• Hyphenation: peep‧hole

peephole (plural peepholes)

1. A small hole, opening, or piece of glass, especially in a door, through which one can look without being seen.

• spyhole (UK)
• peekhole
• doorhole
• door viewer

• “peephole”, in Collins English Dictionary.
• “peephole”, in Merriam-Webster Online Dictionary
• “peephole”, in Lexico, Dictionary.com; Oxford University Press, 2019–2022.
• “peephole” in the Cambridge English Dictionary, Cambridge: Cambridge University Press.