CFG

Name: CFG, English Word Data
Creator: Wiktionary
License: https://creativecommons.org/licenses/by-sa/4.0/

noun

By PlainSpell · According to Wiktionary data (CC BY-SA) · analyzed May 6, 2026

The verdict

“CFG” is uncommon English (frequency #84,081 among 43,570 “C” headwords), classed as a noun. The kind of spelling people second-guess.

#84,081
frequency rank, English: 43,570
“C” headwords

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Initialism of context-free grammar.

Key facts for CFG
Property	Value
Headword	CFG
Language	English
Part of speech	Noun
Letters	3
Frequency rank	#84,081
Misspellings tracked	0
Confusable pairs	0
Source	Wiktionary (kaikki.org)

Where “CFG” sits in English frequency

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

#84,081

#1#100#1K#10K#100K

← used constantlyrarely used →

Scale is logarithmic (each tick is 10× rarer). Source: FrequencyWords open word-frequency list.

Rare enough to double-check

CFG is uncommon English at frequency #84,081 among 43,570 “C” headwords, classed as anoun. Rarity is why readers land here mid-draft. 3 senses are on record.

We couldn't generate a plausible misspelling set for CFG, a straightforward case of a spelling with little room for common typos. No confusable counterpart is on file for this word, since no other headword is close enough in sound or shape to pair with it.

This entry's etymology isn't recorded, so its spelling is best explained by sound-to-letter mapping rather than etymology. The correct English form is CFG, spelled C-F-G.

Definition

1
Initialism of context-free grammar.
2
A configuration file.
3
Initialism of control-flow graph.

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 "CFG"?

"CFG" is spelled C-F-G.

What does "CFG" mean?

As a noun, "CFG" means: Initialism of context-free grammar.

What language does "CFG" come from?

"CFG" is a English word. PlainSpell's reference spans five languages -- English, Spanish, Portuguese, French, and German -- with definitions, pronunciations, and spelling data for each.

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.

Using “CFG”

The practical upshot for anyone who landed here from a spell-check.

The one correct English spelling is C-F-G - 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.