indoor
/ˈɪndɔː/
"indoor" is a 6-letter English headword indexed on PlainSpell.
The verdict
“indoor” is a regularly-used English word, ranked #6,150 in English word frequency and used as an adjective.
- #6,150
- frequency rank, English
- 6
- letters
- 8
- tracked misspellings
- 4
- confusable pairs
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Situated in, or designed to be used in, or carried on within, the interior of a building.
Visual similarity to commonly confused words
How many letter changes separate each confused pair (Levenshtein distance, normalized).
Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).
| Property | Value |
|---|---|
| Headword | indoor |
| Language | English |
| Part of speech | Adjective |
| IPA | /ˈɪndɔː/ |
| Letters | 6 |
| Frequency rank | #6,150 |
| Misspellings tracked | 8 |
| Confusable pairs | 4 |
| Source | Wiktionary (kaikki.org) |
Where “indoor” sits in English frequency
Spelling & Dictionary Insight
The English entry for indoor is 6 letters long, classified as an adjective, and transcribed in the International Phonetic Alphabet as /ˈɪndɔː/. Corpus data places it at rank #6,150 in overall English word frequency, indicating it appears regularly in written and spoken text. The dominant gloss from Wiktionary reads: "Situated in, or designed to be used in, or carried on within, the interior of a building.".
Our generated misspelling index lists 8 likely wrong-spelling variants for indoor, with forms such as "idnoor", "inddoor", and "indoorr". Every one of these variants traces to a single-character edit -- an added or dropped letter, a swapped consonant, or a vowel swap -- the kind of slip a spell-checker is built to catch. It also participates in 4 confusable-pair relationships, "Indore", "indoors", "Indo", and more, where similar look or sound leads writers to substitute one word for another in context.
Etymologically, the entry records: From (with)in + door, first attested 1711. The correct English form is indoor, spelled I-N-D-O-O-R.
Definition
- 1Situated in, or designed to be used in, or carried on within, the interior of a building.
Etymology
From (with)in + door, first attested 1711.
This word in other languages
Common misspellings
Also misspelled as: idnoor,inddoor,indoorr,indor,indoro,inndoor,inodor,nidoor
Misspelling Pattern Breakdown
How far each generated variant is from the correct spelling of indoor - expressed in single-character edits (insert, delete, or swap one letter). Bigger bars stand out at a glance; a one-edit slip is the hardest to catch.
Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.
Frequently Asked Questions
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Using “indoor”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is I-N-D-O-O-R - every other letter order is a misspelling in standard orthography.
- Say it as /ˈɪndɔː/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
- Don't mix it up with “Indore” - see the side-by-side comparison. indoor vs Indore
- Browse more English words and confusable pairs in the same reference. English words
Data Source
Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.