VIHvsVisWhat's the difference?

Quick tell: VIH is a abbrev, Vis is a noun, so they fill different roles in a sentence.

Which to use

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

#24,490
“VIH” frequency rank
#21,333
“Vis” frequency rank
45823
confusion score

Side-by-Side Comparison

Feature VIH Vis
Definition vírus da imunodeficiência humana um sobrenome

Letter map: VIH vs Vis

Shared letters muted; letters that set VIH and Vis apart highlighted. Shared run: 2.

3 ch
VIH
3 ch
Vis

Part-of-speech tell for VIH / Vis

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: VIH is anabbrev and Visanoun. On the page they differ by a single letter - h in “VIH” becomes s in “Vis”. Our composite confusion score for this pair is 45823, derived from the frequency rank of both members and their visual similarity.

VIH is recorded at frequency rank #24,490, classified as anabbrev. Vis is at rank #21,333, tagged as anoun, pronounced /vɪs/ ouvir^(fonte ?).

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 45823, this pair ranks #19,570 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of VIH vs Vis

Shared letters: iv. Private to "VIH": h. Private to "Vis": s.

"VIH" · 3 letters · shape CVC  ·  "Vis" · 3 letters · shape CVC

Frequently Asked Questions

Is swapping "VIH" for "Vis" ever safe?
No - they are not even the same part of speech. "VIH" is an abbrev and "Vis" a noun, so a sentence built for one is usually ungrammatical with the other.
In ordinary Portuguese text, does "VIH" or "Vis" show up more?
"Vis" is the more common of the two: it sits at frequency rank #21,333 in our Portuguese list, against #24,490 for "VIH". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Done with this confusable. These links stay specific to "VIH" and "Vis".

  • Full dictionary entry for "VIH" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "Vis" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #19,570 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "VIH" and "Vis" also get mixed up with nearby pairs, the highest-scored neighbour is "vet vs VIH". Nearby pair

Confusion rank #19,570 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