9 Grammatical Pitfalls


[in-dawr, -dohr] /ˈɪnˌdɔr, -ˌdoʊr/
occurring, used, etc., in a house or building, rather than out of doors:
indoor games.
Origin of indoor
1705-15; aphetic variant of within-door, orig. phrase within (the) door, i.e., inside the house Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for indoor
  • The one is an offshoot of the legitimate drama for indoor use, the other for outdoor.
  • Outside animal enclosures and an indoor natural history exhibit hall featuring live native animals.
  • Ceiling fans can help regulate indoor temperature, making it more comfortable with less energy in summer, winter or in between.
  • Beat the heat with lots of indoor activities such as live music, storytelling, and art and craft projects.
  • The sluice is lined with heavy synthetic matting, similar to indoor-outdoor carpet.
  • The king also installed the latest innovations, such as telephones and indoor plumbing.
  • Here's a look at some of the highlights in the evolution of indoor cooking.
  • Cisterns will collect rainwater, which will be used several ways-including to irrigate an indoor vegetable garden.
  • One is indoor only while two are allowed outside during the day but are locked in every night.
  • Multiple courtyards have been integrated to facilitate indoor and outdoor teaching and interaction.
British Dictionary definitions for indoor


adjective (prenominal)
of, situated in, or appropriate to the inside of a house or other building: an indoor tennis court, indoor amusements
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for indoor

1711, from within door (opposed to outdoor); the form indoors is first attested 1799 in George Washington's writings.

Online Etymology Dictionary, © 2010 Douglas Harper
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