cais
/ˈkajʃ/
The verdict
“cais” is a moderately-common Portuguese word, ranked #10,845 in Portuguese word frequency and used as a noun.
- #10,845
- frequency rank, Portuguese
- 4
- letters
- 5
- tracked misspellings
- 20
- confusable pairs
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - 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
Visual similarity to commonly confused words
How many letter changes separate each confused pair (Levenshtein distance, normalized).
Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).
| Property | Value |
|---|---|
| Headword | cais |
| Language | Portuguese |
| Part of speech | Noun |
| IPA | /ˈkajʃ/ |
| Letters | 4 |
| Frequency rank | #10,845 |
| Misspellings tracked | 5 |
| Confusable pairs | 20 |
| Source | Wiktionary (kaikki.org) |
Where “cais” sits in Portuguese frequency
Spelling & Dictionary Insight
The Portuguese entry for cais is 4 letters long, classified as a noun, and transcribed in the International Phonetic Alphabet as /ˈkajʃ/. Corpus data places it at rank #10,845 in overall Portuguese word frequency, marking it as uncommon enough that many writers pause before typing it. The dominant gloss from Wiktionary reads: "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".
Our generated misspelling index lists 5 likely wrong-spelling variants for cais, with forms such as "acis", "caiss", and "casi". Each of these forms differs from the correct spelling by one small edit: a doubled letter, a dropped silent letter, or a substituted vowel. It also participates in 20 confusable-pair relationships, "ci", "cão", "can", and more, where similar look or sound leads writers to substitute one word for another in context.
This entry carries no recorded etymology, so its spelling is easiest to reason about phoneme by phoneme, absent a documented history. The correct Portuguese form is cais, spelled C-A-I-S.
Definition
- 1lugar 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
Synonyms
This word in other languages
Common misspellings
Also misspelled as: acis,caiss,casi,ccais,cias
Misspelling Pattern Breakdown
How far each generated variant is from the correct spelling of cais - 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.
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 Portuguese corpus, MIT). See the methodology for how each field is sourced and updated.
Frequently Asked Questions
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Using “cais”
The practical upshot for anyone who landed here from a spell-check.
- The one correct Portuguese spelling is C-A-I-S - every other letter order is a misspelling in standard orthography.
- Say it as /ˈkajʃ/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
- Don't mix it up with “ci” - see the side-by-side comparison. cais vs ci
- Browse more Portuguese words and confusable pairs in the same reference. Portuguese words
Data Source
Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.