triangularvstriânguloWhich spelling fits?

Quick tell: triangular is a adjective, triângulo is a noun, so they fill different roles in a sentence.

Which to use

“triangular” is an adjective and “triângulo” is a noun - they look or sound alike but fill different roles in a sentence.

#28,807
“triangular” frequency rank
#8,975
“triângulo” frequency rank
37782
confusion score

Side-by-Side Comparison

Feature triangular triângulo
Definition que tem a forma de um triângulo polígono de três lados

Where the eye mixes triangular and triângulo

Muted = shared; highlighted = the visual trap. They share 7 letters in sequence. triangular runs 10 letters (CCVVCCVCVC) against triângulo's 9 (CCVVCCVCV) - the length gap alone is often enough to separate them once you know to check it.

10 ch
triangular
9 ch
triângulo

Look-alike desk: triangular vs triângulo

These two trip readers on the page rather than in the ear: triangular is /tɾi.ɐ̃.ɡu.ˈlaɾ/ while triângulo is /tɾi.ˈã.gu.lu/. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (adjective vs noun), which is usually the fastest check. Our composite confusion score for this pair is 37782, derived from the frequency rank of both members and their visual similarity.

triangular is recorded at frequency rank #28,807, classified as anadj, pronounced /tɾi.ɐ̃.ɡu.ˈlaɾ/. triângulo is at rank #8,975, tagged as anoun, pronounced /tɾi.ˈã.gu.lu/.

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 37782, this pair ranks #28,792 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of triangular vs triângulo

Shared letters: gilnrtu. Private to "triangular": a. Private to "triângulo": oâ.

"triangular" · 10 letters · shape CCVVCCVCVC  ·  "triângulo" · 9 letters · shape CCVVCCVCV

Known mistypes of this pair

  • triangular ← rtiangular · tirangular · traingular · triagnular · trianggular · triangluar · triangualr · triangularr

Frequently Asked Questions

Can "triangular" and "triângulo" be used interchangeably?
No - they are not even the same part of speech. "triangular" is an adjective and "triângulo" a noun, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "triangular" or "triângulo"?
"triângulo" is the more common of the two: it sits at frequency rank #8,975 in our Portuguese list, against #28,807 for "triangular". 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 "triangular" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "triângulo" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #28,792 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • 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 #28,792 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