Which to use
“Cass” is a name and “CSS” is a noun - they look or sound alike but fill different roles in a sentence.
- #14,714
- “Cass” frequency rank
- #16,676
- “CSS” frequency rank
- 31390
- confusion score
Side-by-Side Comparison
| Feature | Cass | CSS |
|---|---|---|
| Definition | A diminutive of the female given name Cassandra of medieval origin, later also used for Cassidy, and Catherine with its variant forms. | Initialism of change segment status, a GDS code used on older types of airline keyboards. |
Letter map: Cass vs CSS
Shared letters muted; letters that set Cass and CSS apart highlighted. Shared run: 3.
Part-of-speech tell for Cass / CSS
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: Cass is aname and CSSanoun. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 31390, derived from the frequency rank of both members and their visual similarity.
Cass is recorded at frequency rank #14,714, classified as aname. CSS is at rank #16,676, tagged as anoun, pronounced /siː ɛs ˈɛs/.
Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.
With a confusion score of 31390, this pair ranks #346,541 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of Cass vs CSS
Shared letters: cs. Private to "Cass": a. Private to "CSS": -.
"Cass" · 4 letters · shape CVCC · "CSS" · 3 letters · shape CCC
Known mistypes of this pair
- Cass ← acss · ccass · csas
Frequently Asked Questions
Can "Cass" and "CSS" be used interchangeably?
Which is more common, "Cass" or "CSS"?
What to do next
Pair "Cass" vs "CSS" is on the table, pick a follow-up below.
- Full dictionary entry for "Cass" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "CSS" - compare definitions side by side with the headword page. Word entry
- This pair ranks #346,541 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "Cass" and "CSS" also get mixed up with nearby pairs, the highest-scored neighbour is "CGT vs CSS". Nearby pair
- Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes
Confusion rank #346,541 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.