Cao
"cao" is a 3-letter English headword indexed on PlainSpell.
The verdict
“Cao” sits in 20 confusable pairs (corpus #22,312) as a proper noun. The look-alike neighbours are the real trap.
- #22,312
- frequency rank, English
- 5,599
- “C” headwords
- 20
- confusable pairs
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A state of ancient China during the Zhou dynasty.
Corpus desk
Index EN-cao · Cao · English
Cao · rank #22,312 · 0 variants · 20 confusables
- FREQ-MID #22,312
- LEN-MID 3 letters
- VOW-2 2 vowels
- CONFUS-HIGH 20 pairs
- VAR-0 0 variants
- BOOK-DENSE 5,599
- PHOTO-FINISH Casper
Nearest frequency peer: Casper (+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.
Frequency neighbours of confusable “Cao”
Peers at similar corpus weight, separate from look-alike pairs below
- Bundy
Bundy
77,693 corpus weight
- Cao
Cao
77,689 corpus weight
- Casper
Casper
77,688 corpus weight
- cauliflower
cauliflower
77,687 corpus weight
- Cebu
Cebu
77,686 corpus weight
- Celia
Celia
77,685 corpus weight
What this shows Bars place “Cao” against nearest ranked English headwords, not a reprint of the confusable-pair desk.
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 | Cao |
| Language | English |
| Part of speech | Proper noun |
| Letters | 3 |
| Frequency rank | #22,312 |
| Misspellings tracked | 0 |
| Confusable pairs | 20 |
| Source | Wiktionary (kaikki.org) |
Corpus rank beside confusables of “Cao”
Easy to mix with look-alikes
The spelling risk for Cao is neighbouring look-alikes ("co", "CD", …), not just typos; it is aproper noun. Frequency #22,312 among 5,599 “C” headwords. 3 recorded senses keep meaning in play.
The misspelling generator found no plausible variants for Cao, since its letter sequence doesn't invite the usual edit-distance slips. It also participates in 20 confusable-pair relationships, "co", "CD", "CM", and more, a pairing that trips writers up because the two words share enough sound or shape to blur together.
Etymologically, the entry records: From the pinyin romanization of Mandarin 曹 (Cáo). The correct English form is Cao, spelled C-A-O.
Definition
- 1A state of ancient China during the Zhou dynasty.
- 2A county in Heze Prefecture, Shandong, China.
- 3A surname.
Etymology
From the pinyin romanization of Mandarin 曹 (Cáo).
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 "Cao", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 3 letters (nearest by frequency rank).