CMO
"cmo" is a 3-letter English headword indexed on PlainSpell.
The verdict
“CMO” is uncommon English (frequency #50,427 among 43,570 “C” headwords), classed as a noun. The kind of spelling people second-guess.
- #50,427
- frequency rank, English
- 43,570
- “C” headwords
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Initialism of collateralized mortgage obligation.
| Property | Value |
|---|---|
| Headword | CMO |
| Language | English |
| Part of speech | Noun |
| Letters | 3 |
| Frequency rank | #50,427 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “CMO” sits in English frequency
Rare enough to double-check
CMO is uncommon English at frequency #50,427 among 43,570 “C” headwords, classed as anoun. Rarity is why readers land here mid-draft. 5 senses are on record.
CMO has no tracked misspelling variants, typically a sign the spelling maps closely to how the word sounds. No confusable counterpart is on file for this word, since nothing in our dataset looks or sounds close enough to cause mix-ups.
No explicit etymology string is stored for this entry, so spelling patterns must be inferred from the word's phoneme-to-grapheme mapping rather than from a documented borrowing chain. The correct English form is CMO, spelled C-M-O.
Definition
- 1Initialism of collateralized mortgage obligation.
- 2Initialism of civil-military operations (“a military activity”).
- 3Initialism of contract manufacturing organization.
- 4Initialism of chief marketing officer.
- 5Initialism of collective management organization.
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 “CMO”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is C-M-O - 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.