copilot
"copilot" is a 7-letter English headword indexed on PlainSpell.
The verdict
“copilot” is uncommon English (frequency #54,709 among 5,599 “C” headwords), classed as a noun. The kind of spelling people second-guess.
- #54,709
- frequency rank, English
- 5,599
- “C” headwords
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A backup or assistant pilot of an aircraft.
Corpus desk
Index EN-copilot · copilot · English
copilot · rank #54,709 · 0 variants · 0 confusables
- FREQ-RARE #54,709
- LEN-LONG 7 letters
- VOW-3 3 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-DENSE 5,599
- PHOTO-FINISH Coote
Nearest frequency peer: Coote (-1 rank slots)
Read with this headword: Spelling guide for this pattern
Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.
Long-tail ranks near “copilot”
Sparse band: bars invert rank so rarer forms read shorter
- convolution
convolution
45,295 corpus weight
- cooped
cooped
45,294 corpus weight
- Coote
Coote
45,293 corpus weight
- copilot
copilot
45,292 corpus weight
- cornflakes
cornflakes
45,291 corpus weight
- cornmeal
cornmeal
45,290 corpus weight
What this shows Long-tail view: where “copilot” sits against similarly uncommon English ranks.
| 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) |
Long-tail rank of “copilot” in English
Rare enough to double-check
copilot is uncommon English at frequency #54,709 among 5,599 “C” headwords, classed as anoun. Rarity is why readers land here mid-draft. 2 senses are on record.
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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Similar English words by spelling shape
Same letter count and similar misspelling depth for "copilot", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 7 letters (nearest by frequency rank).