fas

noun

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

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

The verdict

“fas” is a moderately-common English word, ranked #27,454 in English word frequency and used as a noun.

#27,454
frequency rank, English
3
letters
20
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A border or fringe.

Visual similarity to commonly confused words

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

fas vs fi
33% similar
fas vs FL
0% similar
fas vs FM
0% similar

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

Key facts for fas
PropertyValue
Headwordfas
LanguageEnglish
Part of speechNoun
Letters3
Frequency rank#27,454
Misspellings tracked0
Confusable pairs20
SourceWiktionary (kaikki.org)

Where “fas” 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). fas lands here:

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

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

Spelling & Dictionary Insight

The English entry for fas is 3 letters long, classified as a noun. Corpus data places it at rank #27,454 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. Wiktionary records 2 distinct senses for this headword, so context determines which meaning a reader should apply.

Zero misspellings are on record for fas in our index, a straightforward case of a spelling with little room for common typos. It also participates in 20 confusable-pair relationships, "fi", "FL", "FM", 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 Middle English fas, from Old English fæs. The correct English form is fas, spelled F-A-S.

Definition

  1. 1
    A border or fringe.
  2. 2
    A thing represented as being worthless.

Etymology

From Middle English fas, from Old English fæs.

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 "fas"?
"fas" is spelled F-A-S.
What does "fas" mean?
As a noun, "fas" means: A border or fringe.
What words are commonly confused with "fas"?
"fas" is commonly confused with "fi", "FL", "FM". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
What is the origin of the word "fas"?
From Middle English fas, from Old English fæs. See the full etymology section above for more details.
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 “fas”

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

  • The one correct English spelling is F-A-S - every other letter order is a misspelling in standard orthography.
  • Don't mix it up with “fi” - see the side-by-side comparison. fas vs fi
  • Browse more English words and confusable pairs in the same reference. English words
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.

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

Source: FrequencyWords open word-frequency list FrequencyWords open word-frequency list