clas

noun

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

"clas" is a 4-letter English headword indexed on PlainSpell.

The verdict

“clas” is uncommon English (frequency #62,770 among 5,599 “C” headwords), classed as a noun. The kind of spelling people second-guess.

#62,770
frequency rank, English
5,599
“C” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A Celtic monastery

Corpus desk

Index EN-clas · clas · English

clas · rank #62,770 · 0 variants · 0 confusables

  • FREQ-RARE #62,770
  • LEN-MID 4 letters
  • VOW-1 1 vowel
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-DENSE 5,599
  • PHOTO-FINISH Cletus

Nearest frequency peer: Cletus (+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.

Long-tail ranks near “clas”

Sparse band: bars invert rank so rarer forms read shorter

corpus weight

What this shows Long-tail view: where “clas” sits against similarly uncommon English ranks.

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for clas
PropertyValue
Headwordclas
LanguageEnglish
Part of speechNoun
Letters4
Frequency rank#62,770
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “clas” in English

Word frequency stretches from the small set of words we reach for constantly (left) out to the long tail barely used once in a while (right).clasfalls in this rarity band:

#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. Rare peers in the same band: “Cletus” (#62,771), “Christmastime” (#62,768), “cleverer” (#62,772). Among 5,599 “C” headwords, “clas” is #62,770. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

clas is uncommon English at frequency #62,770 among 5,599 “C” headwords, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "A Celtic monastery".

clas has no tracked misspelling variants, since its letter sequence doesn't invite the usual edit-distance slips. We don't track a confusable pairing for this entry, since its spelling is unusual enough that it doesn't cluster with a lookalike.

Etymologically, the entry records: From Welsh clas, from Middle Welsh clas, from Proto-Brythonic *klas, from Latin classis. Doublet of class and classis. The correct English form is clas, spelled C-L-A-S.

Definition

  1. 1
    A Celtic monastery

Etymology

From Welsh clas, from Middle Welsh clas, from Proto-Brythonic *klas, from Latin classis. Doublet of class and classis.

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 "clas"?
"clas" is spelled C-L-A-S.
What does "clas" mean?
As a noun, "clas" means: A Celtic monastery
What is the origin of the word "clas"?
From Welsh clas, from Middle Welsh clas, from Proto-Brythonic *klas, from Latin classis. Doublet of class and classis. 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.

Similar English words by spelling shape

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

Same letter count

Frequency-ranked English headwords with 4 letters (nearest by frequency rank).

coho#62,782dawa#62,822bibb#62,712Ayub#62,690

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

Source: FrequencyWords open word-frequency list