caisvsclassTell them apart

Which to use

“cais” and “class” are a confusable Portuguese pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#10,845
“cais” frequency rank
#10,854
“class” frequency rank
21699
confusion score

Side-by-Side Comparison

Feature cais class
Definition lugar à beira-mar, na margem do rio, nas estações de caminho-de-ferro ou do metropolitano apropriado para o embarque e desembarque de pessoas ou mercadorias (Informática) classe

Letter map: cais vs class

Shared letters muted; letters that set cais and class apart highlighted. Shared run: 3.

4 ch
cais
5 ch
class

Spelling & dictionary notes on cais vs class

cais and class are indexed as a confusable Portuguese pair. We have no recorded pronunciation or part of speech for both members, so the spelling overlap is what we can show you: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 21699, derived from the frequency rank of both members and their visual similarity.

cais is recorded at frequency rank #10,845, classified as anoun, pronounced /ˈkajʃ/. class is at rank #10,854, 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 21699, this pair ranks #48,486 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of cais vs class

Shared letters: acs. Private to "cais": i. Private to "class": l.

"cais" · 4 letters · shape CVVC  ·  "class" · 5 letters · shape CCVCC

Known mistypes of this pair

  • caisacis · caiss · casi · ccais · cias
  • classcalss · cclass · clas · cllass · clsas · lcass

Frequently Asked Questions

Can "cais" and "class" be used interchangeably?
No. They differ by 1 letter(s) in length, but the dictionary glosses above give them different meanings, so swapping one for the other changes what the sentence says.
Frequency check: "cais" vs "class" - which ranks higher?
"cais" is the more common of the two: it sits at frequency rank #10,845 in our Portuguese list, against #10,854 for "class". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

You've compared "cais" and "class". Here's where to go from here.

  • Full dictionary entry for "cais" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "class" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #48,486 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "cais" and "class" also get mixed up with nearby pairs, the highest-scored neighbour is "chess vs class". 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 #48,486 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list