vãovsvasTell them apart

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

Which to use

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

#253
“vão” frequency rank
#38,077
“vas” frequency rank
38330
confusion score

Side-by-Side Comparison

Feature vão vas
Definition vazio vaso

Letter map: vão vs vas

Shared letters muted; letters that set vão and vas apart highlighted. Shared run: 1. vão (CVV) and vas (CVC) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.

3 ch
vão
3 ch
vas

Part-of-speech tell for vão / vas

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: vão is anadjective and vasanoun. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 38330, derived from the frequency rank of both members and their visual similarity.

vão is recorded at frequency rank #253, classified as anadj, pronounced /ˈvɐ̃w̃/ [ˈvɐ̃ʊ̯̃]. vas is at rank #38,077, tagged as anoun.

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 38330, this pair ranks #28,142 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of vão vs vas

Shared letters: v. Private to "vão": oã. Private to "vas": as.

"vão" · 3 letters · shape CVV  ·  "vas" · 3 letters · shape CVC

Frequently Asked Questions

Can "vão" and "vas" be used interchangeably?
No - they are not even the same part of speech. "vão" is an adjective and "vas" a noun, so a sentence built for one is usually ungrammatical with the other.
In ordinary Portuguese text, does "vão" or "vas" show up more?
"vão" is the more common of the two: it sits at frequency rank #253 in our Portuguese list, against #38,077 for "vas". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Useful next steps

You've compared "vão" and "vas". Here's where to go from here.

  • Full dictionary entry for "vão" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "vas" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #28,142 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "vão" and "vas" also get mixed up with nearby pairs, the highest-scored neighbour is "vas vs vet". Nearby pair

Confusion rank #28,142 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