copilot
"copilot" is a 7-letter English headword indexed on PlainSpell.
The verdict
“copilot” is an uncommon English word, ranked #54,709 in English word frequency and used as a noun.
- #54,709
- frequency rank, English
- 7
- letters
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A backup or assistant pilot of an aircraft.
| Property | Value |
|---|---|
| Headword | copilot |
| Language | English |
| Part of speech | Noun |
| Letters | 7 |
| Frequency rank | #54,709 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “copilot” sits in English frequency
Spelling & Dictionary Insight
The English entry for copilot is 7 letters long, classified as a noun. Corpus data places it at rank #54,709 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. Wiktionary records 2 distinct senses for this headword, so context determines which meaning a reader should apply.
We couldn't generate a plausible misspelling set for copilot, typically a sign the spelling maps closely to how the word sounds. No close-neighbour confusable shows up for this headword in our dataset, which typically means the spelling is too distinctive to be mistaken for another word.
Etymologically, the entry records: From co- + pilot. The correct English form is copilot, spelled C-O-P-I-L-O-T.
Definition
- 1A backup or assistant pilot of an aircraft.
- 2An assistant, especially one that uses artificial intelligence.
Etymology
From co- + pilot.
Synonyms
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); 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 “copilot”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is C-O-P-I-L-O-T - 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.