cos

pron

The verdict

“cos” sits in 20 confusable pairs (corpus #27,810) as a pronoun. The look-alike neighbours are the real trap.

#27,810
frequency rank, Portuguese
2,140
“C” headwords
20
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - qualquer coisa

Corpus desk

Index PT-cos · cos · Portuguese

cos · rank #27,810 · 0 variants · 20 confusables

  • FREQ-MID #27,810
  • LEN-MID 3 letters
  • VOW-1 1 vowel
  • CONFUS-HIGH 20 pairs
  • VAR-0 0 variants
  • BOOK-MID 2,140
  • PHOTO-FINISH credível

Nearest frequency peer: credível (+3 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.

Vizinhos de frequência do confusável “cos”

Pares de peso semelhante no corpus, aparte dos confusáveis abaixo

corpus weight

What this shows As barras situam “cos” face aos lemas portugueses mais próximos por rank, não um reprint da secretária de confusáveis.

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).

cos vs cu
33% similar
cos vs CPI
0% similar
cos vs cut
33% similar

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

Key facts for cos
PropertyValue
Headwordcos
LanguagePortuguese
Part of speechPronoun
Letters3
Frequency rank#27,810
Misspellings tracked0
Confusable pairs20
SourceWiktionary (kaikki.org)

Rank de corpus junto a confusáveis de “cos”

Esta escala corre do núcleo do português quotidiano (esquerda) até o rastro de formas raras (direita).coscai aqui:

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

O eixo é logarítmico: cada tick marca cerca de dez vezes menos frequência. Na mesma faixa de raridade aparecem “credível” (#27,813), “contest” (#27,803), “conspirar” (#27,801). Entre 2,140 lemas com “C”, “cos” fica em #27,810. Source: FrequencyWords open word-frequency list.

Easy to mix with look-alikes

The spelling risk for cos is neighbouring look-alikes ("cu", "CPI", …), not just typos; it is apronoun. Frequency #27,810 among 2,140 “C” headwords. Gloss: "qualquer coisa".

No generated misspelling entries exist for cos in our index, which points to an orthography that plays by predictable Portuguese rules. It also participates in 20 confusable-pair relationships, "cu", "CPI", "cut", and more, where similar look or sound leads writers to substitute one word for another in context.

This entry's etymology isn't recorded, 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 cos, spelled C-O-S.

Definition

  1. 1
    qualquer coisa

Recorded use

Wiktionary example

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

  1. "Cos to zase provedl?"

Antonyms

nic

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 "cos"?
"cos" is spelled C-O-S.
What does "cos" mean?
As a pronoun, "cos" means: qualquer coisa
What words are commonly confused with "cos"?
"cos" is commonly confused with "cu", "CPI", "cut". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
What language does "cos" come from?
"cos" is a Portuguese word. You can look up definitions, pronunciations, and spelling data for this and other words across English, Spanish, Portuguese, French, and German on PlainSpell.
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 "cos", not the corpus desk frequency band.

Same letter count

Frequency-ranked Portuguese headwords with 3 letters (nearest by frequency rank).

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

Source: FrequencyWords open word-frequency list