seis

num

The verdict

“seis” has 5 generated spelling variants in the Portuguese index at frequency #542. The variants make it a useful spelling check.

#542
frequency rank, Portuguese
1,185
“S” headwords
5
tracked misspellings
20
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - número equivalente a cinco mais um; cardinalidade de um conjunto que contenha seis elementos distintos; representado pelo símbolo 6 (algarismos arábicos) ou VI (algarismos romanos)

Corpus desk

Index PT-seis · seis · Portuguese

seis · rank #542 · 5 variants · 20 confusables

  • FREQ-CORE #542
  • LEN-MID 4 letters
  • VOW-2 2 vowels
  • CONFUS-HIGH 20 pairs
  • VAR-MID 5 variants
  • BOOK-MID 1,185
  • PHOTO-FINISH português

Nearest frequency peer: português (-1 rank slots)

Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.

Pares de rank junto ao íman ortográfico “seis”

Mesma faixa de raridade: útil se um typo cair num lema vizinho

corpus weight

What this shows “seis” está entre estes pares FrequencyWords; a profundidade de typo mede-se à parte no gráfico de distância de edição.

Source FrequencyWords open word-frequency list As of September 3, 2026

Visual similarity to commonly confused words

How many letter changes separate each confused pair (Levenshtein distance, normalized).

seis vs si
50% similar
seis vs ser
50% similar
seis vs seu
50% similar

Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).

Key facts for seis
PropertyValue
Headwordseis
LanguagePortuguese
Part of speechNumeral
Letters4
Frequency rank#542
Misspellings tracked5
Confusable pairs20
SourceWiktionary (kaikki.org)

Frequência do íman ortográfico “seis”

A frequência vai do punhado de palavras do dia a dia (esquerda) à cauda longa quase nunca usada (direita).seiscai aqui:

#1#100#1K#10K#100K
← used constantlyrarely used →

Os ticks avançam em logaritmo; cada um é da ordem de dez vezes mais raro. Na mesma faixa de raridade aparecem “português” (#541), “situação” (#543), “período” (#540). Entre 1,185 lemas com “S”, “seis” fica em #542. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 5 spelling variants around seis, anumeral. Corpus frequency is #542 among 1,185 “S” headwords. Dominant gloss: "número equivalente a cinco mais um; cardinalidade de um conjunto que contenha seis elementos distintos; representado pelo símbolo 6 (algarismos arábicos) ou VI (algarismos romanos)".

Our generated misspelling index lists 5 likely wrong-spelling variants for seis, with forms such as "esis", "seiss", and "sesi". 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, "si", "ser", "seu", and more, since the words sound or look close enough that writers reach for the wrong one mid-sentence.

No documented word history exists for this headword, so any spelling logic here comes from how the word's sounds map to letters, not a documented origin story. The correct Portuguese form is seis, spelled S-E-I-S.

Definition

  1. 1
    número equivalente a cinco mais um; cardinalidade de um conjunto que contenha seis elementos distintos; representado pelo símbolo 6 (algarismos arábicos) ou VI (algarismos romanos)

Recorded use

Wiktionary example

These source excerpts show how seis appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. Um hexágono tem seis lados.

This word in other languages

Common misspellings

Also misspelled as:

  • esis
  • seiss
  • sesi
  • sies
  • sseis

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of seis - measured in single-character edits (insert, delete, or substitute a letter). Larger bars are easier to catch; one-edit slips are the sneakiest.

esis2seiss1sesi2sies2sseis1
Edit distance from "seis"

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

How do you spell "seis"?
"seis" is spelled S-E-I-S.
What does "seis" mean?
As a numeral, "seis" means: número equivalente a cinco mais um; cardinalidade de um conjunto que contenha seis elementos distintos; representado pelo símbolo 6 (algarismos arábicos) ou VI (algarismos romanos)
What words are commonly confused with "seis"?
"seis" is commonly confused with "si", "ser", "seu". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
What language does "seis" come from?
"seis" is a Portuguese word. PlainSpell's reference spans five languages -- English, Spanish, Portuguese, French, and German -- with definitions, pronunciations, and spelling data for each.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Similar Portuguese words by spelling shape

Same letter count and similar misspelling depth for "seis", not the corpus desk frequency band.

Same letter count

Frequency-ranked Portuguese headwords with 4 letters (nearest by frequency rank).

Similar misspelling depth

Headwords with a similar count of attested misspellings (5 here; floor ≥5).

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

Source: FrequencyWords open word-frequency list