clorovscopoTell them apart

Which to use

“cloro” and “copo” are a confusable Portuguese pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#18,802
“cloro” frequency rank
#3,195
“copo” frequency rank
21997
confusion score

Side-by-Side Comparison

Feature cloro copo
Definition elemento químico de símbolo Cl, possui o número atômico 17 e massa atômica relativa 35,453; é encontrado na natureza somente em compostos com outros elementos, como o cloreto de sódio ou o cloreto de potássio; é um gás, na temperatura ambiente, extremamente tóxico; utilizado como germicida padrão para o tratamento de água, na fabricação de papéis, derivados de petróleo, medicamentos, tintas, solvente e plásticos recipiente, normalmente cilíndrico, do qual podem beber-se líquidos

Where the eye mixes cloro and copo

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.

5 ch
cloro
4 ch
copo

Why the eye confuses cloro with copo

A purely visual mix-up. cloro (/ˈkłɔru/) and copo (/ˈkɔ.pu/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 21997, derived from the frequency rank of both members and their visual similarity.

cloro is recorded at frequency rank #18,802, classified as anoun, pronounced /ˈkłɔru/. copo is at rank #3,195, tagged as anoun, pronounced /ˈkɔ.pu/.

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 21997, this pair ranks #48,149 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of cloro vs copo

Shared letters: co. Private to "cloro": lr. Private to "copo": p.

"cloro" · 5 letters · shape CCVCV  ·  "copo" · 4 letters · shape CVCV

Known mistypes of this pair

  • cloroccloro · clloro · clorro · clroo · lcoro
  • copoccopo · coop · coppo · cpoo · ocpo

Frequently Asked Questions

Can "cloro" and "copo" be used interchangeably?
No. They are said differently (/ˈkłɔru/ versus /ˈkɔ.pu/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
In ordinary Portuguese text, does "cloro" or "copo" show up more?
"copo" is the more common of the two: it sits at frequency rank #3,195 in our Portuguese list, against #18,802 for "cloro". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "cloro" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "copo" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #48,149 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "cloro" and "copo" also get mixed up with nearby pairs, the highest-scored neighbour is "cloro vs colono". Nearby pair
  • 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 #48,149 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