car door

noun

"car-door" is a 7-letter English headword indexed on PlainSpell.

The verdict

“car door” is uncommon English (outside the top frequency list), classed as a noun. The kind of spelling people second-guess.

Unranked
below top-frequency English
8
letters

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A door designed for use on a car (whether a railway carriage or an automobile).

Key facts for car door
PropertyValue
Headwordcar door
LanguageEnglish
Part of speechNoun
Letters8
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “car door” sits in English frequency

car door falls outside the top-100,000 ranked English words, the long-tail zone of technical, archaic, or low-frequency vocabulary, exactly where readers second-guess spellings most.

Beyond rank #100,000. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

car door is uncommon English outside the top frequency list, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "A door designed for use on a car (whether a railway carriage or an automobile).".

The misspelling generator found no plausible variants for car door, suggesting the orthography follows predictable English patterns. No confusable counterpart is on file for this word, since nothing in our dataset looks or sounds close enough to cause mix-ups.

Etymologically, the entry records: 1863 (US, applied to “railway car”). The correct English form is car door, spelled C-A-R- -D-O-O-R.

Definition

  1. 1
    A door designed for use on a car (whether a railway carriage or an automobile).

Etymology

1863 (US, applied to “railway car”).

This word in other languages

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "car door"?
"car door" is spelled C-A-R- -D-O-O-R.
What does "car door" mean?
As a noun, "car door" means: A door designed for use on a car (whether a railway carriage or an automobile).
What is the origin of the word "car door"?
1863 (US, applied to “railway car”). See the full etymology section above for more details.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Using “car door”

The practical upshot for anyone who landed here from a spell-check.

  • The one correct English spelling is C-A-R- -D-O-O-R - every other letter order is a misspelling in standard orthography.
  • 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.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list