CFR
"cfr" is a 3-letter English headword indexed on PlainSpell.
The verdict
“CFR” sits in 20 confusable pairs (corpus #26,366) as a proper noun. The look-alike neighbours are the real trap.
- #26,366
- frequency rank, English
- 5,599
- “C” headwords
- 20
- confusable pairs
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Initialism of Code of Federal Regulations.
Corpus desk
Index EN-cfr · CFR · English
CFR · rank #26,366 · 0 variants · 20 confusables
- FREQ-MID #26,366
- LEN-MID 3 letters
- VOW-0 0 vowels
- CONFUS-HIGH 20 pairs
- VAR-0 0 variants
- BOOK-DENSE 5,599
- PHOTO-FINISH cellulose
Nearest frequency peer: cellulose (-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 “CFR”
Peers at similar corpus weight, separate from look-alike pairs below
- Casablanca
Casablanca
73,639 corpus weight
- casserole
casserole
73,638 corpus weight
- Catalina
Catalina
73,637 corpus weight
- cellulose
cellulose
73,636 corpus weight
- CFR
CFR
73,635 corpus weight
- churn
churn
73,632 corpus weight
What this shows Bars place “CFR” 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 | CFR |
| Language | English |
| Part of speech | Proper noun |
| Letters | 3 |
| Frequency rank | #26,366 |
| Misspellings tracked | 0 |
| Confusable pairs | 20 |
| Source | Wiktionary (kaikki.org) |
Corpus rank beside confusables of “CFR”
Easy to mix with look-alikes
The spelling risk for CFR is neighbouring look-alikes ("co", "CM", …), not just typos; it is aproper noun. Frequency #26,366 among 5,599 “C” headwords. 2 recorded senses keep meaning in play.
CFR doesn't appear in our generated misspelling index, which points to an orthography that plays by predictable English rules. It also participates in 20 confusable-pair relationships, "co", "CM", "CT", and more, where similar look or sound leads writers to substitute one word for another in context.
Our source data has no etymology on file for this entry, so its spelling is best read as a straightforward mapping from sound to letter. The correct English form is CFR, spelled C-F-R.
Definition
- 1Initialism of Code of Federal Regulations.
- 2Initialism of Council on Foreign Relations.
Recorded use
Wiktionary exampleThese source excerpts show how CFR appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
Title 14 Code of Federal Regulations (CFR) Part 77 requires that anyone building a structure near an airport report their intentions to the Federal Aviation Administration (FAA).
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
How do you spell "CFR"?
What does "CFR" mean?
What words are commonly confused with "CFR"?
What language does "CFR" come from?
Is PlainSpell free to use?
Similar English words by spelling shape
Same letter count and similar misspelling depth for "CFR", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 3 letters (nearest by frequency rank).