codeshare
"codeshare" is a 9-letter English headword indexed on PlainSpell.
The verdict
“codeshare” is uncommon English (frequency #99,113 among 43,570 “C” headwords), classed as a noun. The kind of spelling people second-guess.
- #99,113
- frequency rank, English
- 43,570
- “C” headwords
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - An agreement whereby an airline buys space on another airline and markets the extra space as its own. Often used to increase a route network without the costs of running a full service.
| Property | Value |
|---|---|
| Headword | codeshare |
| Language | English |
| Part of speech | Noun |
| Letters | 9 |
| Frequency rank | #99,113 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “codeshare” sits in English frequency
Rare enough to double-check
codeshare is uncommon English at frequency #99,113 among 43,570 “C” headwords, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "An agreement whereby an airline buys space on another airline and markets the extra space as its own. Often used to increase a route network without the costs of running a full service.".
codeshare doesn't appear in our generated misspelling index, typically a sign the spelling maps closely to how the word sounds. It is not paired with a close-neighbour confusable in our dataset, since its spelling is unusual enough that it doesn't cluster with a lookalike.
Etymologically, the entry records: From code + share, because of the change in the flight's two-letter airline identity code. One aircraft will have two or more codes and flight numbers. The correct English form is codeshare, spelled C-O-D-E-S-H-A-R-E.
Definition
- 1An agreement whereby an airline buys space on another airline and markets the extra space as its own. Often used to increase a route network without the costs of running a full service.
Etymology
From code + share, because of the change in the flight's two-letter airline identity code. One aircraft will have two or more codes and flight numbers.
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 “codeshare”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is C-O-D-E-S-H-A-R-E - every other letter order is a misspelling in standard orthography.
- Browse more English words and confusable pairs in the same reference. English words
Other uncommon English words near this rank
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.