caisvscoinConfusable pair

Which to use

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

#10,845
“cais” frequency rank
#41,891
“coin” frequency rank
52736
confusion score

Side-by-Side Comparison

Feature cais coin
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 plural de cù

Where the eye mixes cais and coin

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence. cais and coin follow the identical consonant-vowel pattern (CVVC). Same shape at a glance is often the real trap, independent of shared letters.

4 ch
cais
4 ch
coin

Look-alike desk: cais vs coin

A purely visual mix-up. cais (/ˈkajʃ/) and coin (/konʲ/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 52736, 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/. coin is at rank #41,891, tagged as anoun, pronounced /konʲ/.

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 52736, this pair ranks #12,538 of 75,631 scored Portuguese confusable pairs - among the most confusable pairs.

Orthographic DNA of cais vs coin

Shared letters: ci. Private to "cais": as. Private to "coin": no.

"cais" · 4 letters · shape CVVC  ·  "coin" · 4 letters · shape CVVC

Known mistypes of this pair

  • cais ← acis · caiss · casi · ccais · cias
  • coin ← ccoin · cion · coinn · coni · ocin

Frequently Asked Questions

Do "cais" and "coin" mean the same thing in a sentence?
No. They are said differently (/ˈkajʃ/ versus /konʲ/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "cais" vs "coin" - which ranks higher?
"cais" is the more common of the two: it sits at frequency rank #10,845 in our Portuguese list, against #41,891 for "coin". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "cais" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "coin" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #12,538 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "cais" and "coin" also get mixed up with nearby pairs, the highest-scored neighbour is "coice vs coin". 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 #12,538 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