cosseno

/ku.ˈse.nu/

//ku.ˈse.nu// noun

The verdict

“cosseno” is uncommon Portuguese (frequency #72,350 among 2,140 “C” headwords), classed as a noun. The kind of spelling people second-guess.

#72,350
frequency rank, Portuguese
2,140
“C” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - em relação a um dos ângulos agudos de um triângulo retângulo, é o resultado da divisão do valor do cateto adjacente a este ângulo pelo valor da hipotenusa

Corpus desk

Index PT-cosseno · cosseno · Portuguese

cosseno · rank #72,350 · 0 variants · 0 confusables

  • FREQ-RARE #72,350
  • LEN-LONG 7 letters
  • VOW-3 3 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-MID 2,140
  • PHOTO-FINISH corrimento

Nearest frequency peer: corrimento (-4 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.

Ranks da cauda longa perto de “cosseno”

Faixa escassa: as barras invertem o rank para o raro ler-se mais curto

corpus weight

What this shows Vista da cauda longa: onde “cosseno” se situa face a ranks portugueses igualmente raros.

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for cosseno
PropertyValue
Headwordcosseno
LanguagePortuguese
Part of speechNoun
IPA/ku.ˈse.nu/
Letters7
Frequency rank#72,350
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Cauda longa: rank de “cosseno” em português

Esta escala corre do núcleo do português quotidiano (esquerda) até o rastro de formas raras (direita).cossenocai nesta cauda de raridade:

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

O eixo é logarítmico: cada tick marca cerca de dez vezes menos frequência. Vizinhos raros da mesma faixa: “corrimento” (#72,346), “cooptar” (#72,344), “cumulativamente” (#72,358). Entre 2,140 lemas com “C”, “cosseno” fica em #72,350. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

cosseno is uncommon Portuguese at frequency #72,350 among 2,140 “C” headwords, classed as anoun, transcribed /ku.ˈse.nu/. Rarity is why readers land here mid-draft. 2 senses are on record.

cosseno doesn't appear in our generated misspelling index, since its letter pattern doesn't lend itself to common typo substitutions. Our confusable-pair dataset has no match for it, since its spelling is unusual enough that it doesn't cluster with a lookalike.

This headword's origin isn't recorded in our source data, so its spelling is easiest to reason about phoneme by phoneme, absent a documented history. The correct Portuguese form is cosseno, spelled C-O-S-S-E-N-O.

Definition

  1. 1
    em relação a um dos ângulos agudos de um triângulo retângulo, é o resultado da divisão do valor do cateto adjacente a este ângulo pelo valor da hipotenusa
  2. 2
    projeção no eixo horizontal, num plano cartesiano ortogonal, do segmento de reta que parte da origem dos eixos (horizontal e vertical) até o ponto de encontro com a circunferência de valor de raio 1 (e centro na origem dos eixos)

Recorded use

Wiktionary example

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

  1. cossenodôangulo=catetoadjacente/hipotenusa

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 "cosseno"?
"cosseno" is spelled C-O-S-S-E-N-O. The IPA pronunciation is /ku.ˈse.nu/.
What does "cosseno" mean?
As a noun, "cosseno" means: em relação a um dos ângulos agudos de um triângulo retângulo, é o resultado da divisão do valor do cateto adjacente a este ângulo pelo valor da hipotenusa
How do you pronounce "cosseno"?
The IPA (International Phonetic Alphabet) transcription for "cosseno" is /ku.ˈse.nu/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What language does "cosseno" come from?
"cosseno" 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 "cosseno", not the corpus desk frequency band.

Same letter count

Frequency-ranked Portuguese headwords with 7 letters (nearest by frequency rank).

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

Source: FrequencyWords open word-frequency list