vão vs VIH, What's the Difference?

Which to use

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

#253
“vão” frequency rank: #24,490
“VIH” frequency rank: 24743
confusion score

Side-by-Side Comparison

Feature	vão	VIH
Definition	vazio	vírus da imunodeficiência humana

Letter map: vão vs VIH

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

3 ch

vão

3 ch

VIH

Grammar separator: vão vs VIH

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: vão is anadjective and VIHanabbrev. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 24743, 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]. VIH is at rank #24,490, tagged as anabbrev.

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 24743, this pair ranks #44,784 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of vão vs VIH

Shared letters: v. Private to "vão": oã. Private to "VIH": hi.

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

Frequently Asked Questions

Is swapping "vão" for "VIH" ever safe?

No - they are not even the same part of speech. "vão" is an adjective and "VIH" an abbrev, so a sentence built for one is usually ungrammatical with the other.

In ordinary Portuguese text, does "vão" or "VIH" show up more?

"vão" is the more common of the two: it sits at frequency rank #253 in our Portuguese list, against #24,490 for "VIH". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

After this comparison

Pair "vão" vs "VIH" is on the table, pick a follow-up below.

Full dictionary entry for "vão" with definition, IPA, and generated misspellings. Word entry
Full dictionary entry for "VIH" - compare definitions side by side with the headword page. Word entry
This pair ranks #44,784 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
"vão" and "VIH" also get mixed up with nearby pairs, the highest-scored neighbour is "vet vs VIH". Nearby pair

Confusion rank #44,784 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.