CSSvsCVDWhich spelling fits?

Which to use

“CSS” and “CVD” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#16,676
“CSS” frequency rank
#45,872
“CVD” frequency rank
62548
confusion score

Side-by-Side Comparison

Feature CSS CVD
Definition Initialism of change segment status, a GDS code used on older types of airline keyboards. Initialism of chemical vapor/vapour deposition.

Letter map: CSS vs CVD

Shared letters muted; letters that set CSS and CVD apart highlighted. Shared run: 1.

3 ch
CSS
3 ch
CVD

Spelling & dictionary notes on CSS vs CVD

CSS and CVD are indexed as a confusable English pair. We have no recorded pronunciation or part of speech for both members, so the spelling overlap is what we can show you: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 62548, derived from the frequency rank of both members and their visual similarity.

CSS is recorded at frequency rank #16,676, classified as anoun, pronounced /siː ɛs ˈɛs/. CVD is at rank #45,872, tagged as anoun.

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 62548, this pair ranks #87,890 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of CSS vs CVD

Shared letters: c. Private to "CSS": s. Private to "CVD": dv.

"CSS" · 3 letters · shape CCC  ·  "CVD" · 3 letters · shape CCC

Frequently Asked Questions

Can "CSS" and "CVD" be used interchangeably?
No. They share most of their letters but differ in 2 positions, but the dictionary glosses above give them different meanings, so swapping one for the other changes what the sentence says.
Frequency check: "CSS" vs "CVD" - which ranks higher?
"CSS" is the more common of the two: it sits at frequency rank #16,676 in our English list, against #45,872 for "CVD". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Done with this confusable. These links stay specific to "CSS" and "CVD".

  • Full dictionary entry for "CSS" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "CVD" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #87,890 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "CSS" and "CVD" also get mixed up with nearby pairs, the highest-scored neighbour is "CGT vs CVD". Nearby pair

Confusion rank #87,890 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list