CBO
"cbo" is a 3-letter English headword indexed on PlainSpell.
The verdict
“CBO” sits in 20 confusable pairs (corpus #35,648) as a proper noun. The look-alike neighbours are the real trap.
- #35,648
- frequency rank, English
- 43,570
- “C” headwords
- 20
- confusable pairs
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Initialism of Congressional Budget Office.
Visual similarity to commonly confused words
How many letter changes separate each confused pair (Levenshtein distance, normalized).
Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).
| Property | Value |
|---|---|
| Headword | CBO |
| Language | English |
| Part of speech | Proper noun |
| Letters | 3 |
| Frequency rank | #35,648 |
| Misspellings tracked | 0 |
| Confusable pairs | 20 |
| Source | Wiktionary (kaikki.org) |
Where “CBO” sits in English frequency
Easy to mix with look-alikes
The spelling risk for CBO is neighbouring look-alikes ("co", "CD", …), not just typos; it is aproper noun. Frequency #35,648 among 43,570 “C” headwords. Gloss: "Initialism of Congressional Budget Office.".
Our edit-distance generator produced no likely misspellings for CBO, since its letter pattern doesn't lend itself to common typo substitutions. It also participates in 20 confusable-pair relationships, "co", "CD", "CM", and more, where similar look or sound leads writers to substitute one word for another in context.
No borrowing history is documented for this entry, leaving phoneme-to-grapheme mapping as the best guide to its spelling rather than a borrowing history. The correct English form is CBO, spelled C-B-O.
Definition
- 1Initialism of Congressional Budget Office.
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 “CBO”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is C-B-O - every other letter order is a misspelling in standard orthography.
- Don't mix it up with “co” - see the side-by-side comparison. CBO vs co
- Browse more English words and confusable pairs in the same reference. English words
Words at a similar English frequency
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.