CFC

noun

By · According to Wiktionary data (CC BY-SA) ·

"cfc" is a 3-letter English headword indexed on PlainSpell.

The verdict

“CFC” sits in 20 confusable pairs (corpus #34,818) as a noun. The look-alike neighbours are the real trap.

#34,818
frequency rank, English
5,599
“C” headwords
20
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Initialism of chlorofluorocarbon, a class of molecules containing chlorine, fluorine and carbon atoms.

Corpus desk

Index EN-cfc · CFC · English

CFC · rank #34,818 · 0 variants · 20 confusables

  • FREQ-MID #34,818
  • LEN-MID 3 letters
  • VOW-0 0 vowels
  • CONFUS-HIGH 20 pairs
  • VAR-0 0 variants
  • BOOK-DENSE 5,599
  • PHOTO-FINISH carnivorous

Nearest frequency peer: carnivorous (-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 “CFC”

Peers at similar corpus weight, separate from look-alike pairs below

corpus weight

What this shows Bars place “CFC” against nearest ranked English headwords, not a reprint of the confusable-pair desk.

Source FrequencyWords open word-frequency list As of September 3, 2026

Visual similarity to commonly confused words

How many letter changes separate each confused pair (Levenshtein distance, normalized).

CFC vs co
0% similar
CFC vs CM
33% similar
CFC vs CT
33% similar

Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).

Key facts for CFC
PropertyValue
HeadwordCFC
LanguageEnglish
Part of speechNoun
Letters3
Frequency rank#34,818
Misspellings tracked0
Confusable pairs20
SourceWiktionary (kaikki.org)

Corpus rank beside confusables of “CFC”

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right).CFClands here:

#1#100#1K#10K#100K
← used constantlyrarely used →

Ticks step logarithmically, so each one marks a roughly tenfold drop in how often the word turns up. Same rarity band neighbours include “carnivorous” (#34,817), “characteristically” (#34,819), “candida” (#34,816). Among 5,599 “C” headwords, “CFC” is #34,818. Source: FrequencyWords open word-frequency list.

Easy to mix with look-alikes

The spelling risk for CFC is neighbouring look-alikes ("co", "CM", …), not just typos; it is anoun. Frequency #34,818 among 5,599 “C” headwords. 2 recorded senses keep meaning in play.

No misspelling variants are generated for CFC in our index, and the word's spelling is regular enough that our generator found nothing worth flagging. It also participates in 20 confusable-pair relationships, "co", "CM", "CT", and more, a pairing that trips writers up because the two words share enough sound or shape to blur together.

This entry carries no recorded etymology, 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 CFC, spelled C-F-C.

Definition

  1. 1
    Initialism of chlorofluorocarbon, a class of molecules containing chlorine, fluorine and carbon atoms.
  2. 2
    Initialism of controlled foreign corporation.

Recorded use

Wiktionary examples

These source excerpts show how CFC appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. Potential replacements for the chlorofluorocarbon (CFC) chemicals now extensively used as refrigerants, propellants, bubbles in plastic and cleaning fluids have already been identified.
  2. Contrary to his assertion, however, virtually all relevant researchers say the link between CFCs and ozone depletion is based on unassailably solid scientific evidence.

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 "CFC"?
"CFC" is spelled C-F-C.
What does "CFC" mean?
As a noun, "CFC" means: Initialism of chlorofluorocarbon, a class of molecules containing chlorine, fluorine and carbon atoms.
What words are commonly confused with "CFC"?
"CFC" is commonly confused with "co", "CM", "CT". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
What language does "CFC" come from?
"CFC" is a English word. PlainSpell covers definitions, pronunciations, and spelling data across English, Spanish, Portuguese, French, and German.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Similar English words by spelling shape

Same letter count and similar misspelling depth for "CFC", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 3 letters (nearest by frequency rank).

CHR#34,825cig#34,828ber#34,795awa#34,785

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list