metanovsmetroTell them apart

Which to use

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

#25,398
“metano” frequency rank
#4,246
“metro” frequency rank
29644
confusion score

Side-by-Side Comparison

Feature metano metro
Definition substância cujas moléculas são formadas por um átomo de carbono ligado a quatro de hidrogênio; tem fórmula CH₄ medida que regula a quantidade de sílabas de cada verso

Where the eye mixes metano and metro

Muted = shared; highlighted = the visual trap. They share 4 letters in sequence. metano runs 6 letters (CVCVCV) against metro's 5 (CVCCV) - the length gap alone is often enough to separate them once you know to check it.

6 ch
metano
5 ch
metro

Look-alike desk: metano vs metro

A purely visual mix-up. metano (/me.ˈtã.nu/) and metro (/ˈmɛ.tɾu/) 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 29644, derived from the frequency rank of both members and their visual similarity.

metano is recorded at frequency rank #25,398, classified as anoun, pronounced /me.ˈtã.nu/. metro is at rank #4,246, tagged as anoun, pronounced /ˈmɛ.tɾu/.

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 29644, this pair ranks #38,937 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of metano vs metro

Shared letters: emot. Private to "metano": an. Private to "metro": r.

"metano" · 6 letters · shape CVCVCV  ·  "metro" · 5 letters · shape CVCCV

Known mistypes of this pair

  • metano ← emtano · meatno · metanno · metaon · metnao · mettano · mmetano · mteano
  • metro ← emtro · merto · metor · metrro · mettro · mmetro · mtero

Frequently Asked Questions

Can "metano" and "metro" be used interchangeably?
No. They are said differently (/me.ˈtã.nu/ versus /ˈmɛ.tɾu/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "metano" or "metro"?
"metro" is the more common of the two: it sits at frequency rank #4,246 in our Portuguese list, against #25,398 for "metano". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "metano" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "metro" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #38,937 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "metano" and "metro" also get mixed up with nearby pairs, the highest-scored neighbour is "melado vs metano". 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 #38,937 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