Cass

name

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

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

The verdict

“Cass” sits in 20 confusable pairs (corpus #14,714) as a proper noun. The look-alike neighbours are the real trap.

#14,714
frequency rank, English
5,599
“C” headwords
3
tracked misspellings
20
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A diminutive of the female given name Cassandra of medieval origin, later also used for Cassidy, and Catherine with its variant forms.

Corpus desk

Index EN-cass · Cass · English

Cass · rank #14,714 · 3 variants · 20 confusables

  • FREQ-MID #14,714
  • LEN-MID 4 letters
  • VOW-1 1 vowel
  • CONFUS-HIGH 20 pairs
  • VAR-LOW 3 variants
  • BOOK-DENSE 5,599
  • PHOTO-FINISH cas

Nearest frequency peer: cas (-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 “Cass”

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

corpus weight

What this shows Bars place “Cass” 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).

Cass vs cs
25% similar
Cass vs cat
25% similar
Cass vs CBS
25% similar

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

Key facts for Cass
PropertyValue
HeadwordCass
LanguageEnglish
Part of speechProper noun
Letters4
Frequency rank#14,714
Misspellings tracked3
Confusable pairs20
SourceWiktionary (kaikki.org)

Corpus rank beside confusables of “Cass”

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).Casslands here:

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

Scale is logarithmic (each tick is 10× rarer). Same rarity band neighbours include “cas” (#14,713), “CCTV” (#14,715), “carving” (#14,712). Among 5,599 “C” headwords, “Cass” is #14,714. Source: FrequencyWords open word-frequency list.

Easy to mix with look-alikes

The spelling risk for Cass is neighbouring look-alikes ("cs", "cat", …), not just typos; it is aproper noun. Frequency #14,714 among 5,599 “C” headwords. 8 recorded senses keep meaning in play.

Our generated misspelling index lists 3 likely wrong-spelling variants for Cass, with forms such as "acss", "ccass", and "csas". Each variant is a distinct typo pattern an edit-distance generator flags, typically a doubled-consonant error, a silent-letter drop, or a vowel substitution. It also participates in 20 confusable-pair relationships, "cs", "cat", "CBS", and more, since the words sound or look close enough that writers reach for the wrong one mid-sentence.

Etymologically, the entry records: * As an English surname, from a pet form of Cassandra. * As an Irish surname, from Ó Cais (“descendant of the curly-haired one”), from cas (“curly”). The correct English form is Cass, spelled C-A-S-S.

Definition

  1. 1
    A diminutive of the female given name Cassandra of medieval origin, later also used for Cassidy, and Catherine with its variant forms.
  2. 2
    A surname originating as a matronymic.
  3. 3
    A male given name transferred from the surname.
  4. 4
    A diminutive of the male given name Cassius.
  5. 5
    A number of places:
  6. 6
    A number of places:
  7. 7
    A number of places:
  8. 8
    A number of places:

Recorded use

Wiktionary example

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

  1. Most of the time, Anne Marie and Kathleen got along as well as any sisters six years apart would: Kathleen called Anne Annie, and Anne Marie called Kathleen Cass or Kate.

Etymology

* As an English surname, from a pet form of Cassandra. * As an Irish surname, from Ó Cais (“descendant of the curly-haired one”), from cas (“curly”).

Common misspellings

Also misspelled as:

  • acss
  • ccass
  • csas

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of Cass - counted as single-character edits (an insertion, a deletion, or a substituted letter). The larger the bar, the easier the typo is to spot; one-edit slips are the ones that sneak past readers.

acss2ccass1csas2
Edit distance from "Cass"

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 "Cass"?
"Cass" is spelled C-A-S-S.
What does "Cass" mean?
As a proper noun, "Cass" means: A diminutive of the female given name Cassandra of medieval origin, later also used for Cassidy, and Catherine with its variant forms.
What words are commonly confused with "Cass"?
"Cass" is commonly confused with "cs", "cat", "CBS". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
What is the origin of the word "Cass"?
* As an English surname, from a pet form of Cassandra. * As an Irish surname, from Ó Cais (“descendant of the curly-haired one”), from cas (“curly”). 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 "Cass", not the corpus desk frequency band.

Same letter count

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

CCTV#14,715bruh#14,711Choi#14,719cuff#14,730

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

Source: FrequencyWords open word-frequency list