valênciavsvigênciaConfusable pair

Which to use

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

#19,877
“valência” frequency rank
#17,943
“vigência” frequency rank
37820
confusion score

Side-by-Side Comparison

Feature valência vigência
Definition ato ou efeito de valer período de validade

Where the eye mixes valência and vigência

Muted = shared; highlighted = the visual trap. They share 6 letters in sequence. valência and vigência follow the identical consonant-vowel pattern (CVCVCCVV). Same shape at a glance is often the real trap, independent of shared letters.

8 ch
valência
8 ch
vigência

Look-alike desk: valência vs vigência

A purely visual mix-up. valência (/vɐ.ˈlẽ.sjɐ/) and vigência (/vi.ˈʒẽ.sjɐ/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 37820, derived from the frequency rank of both members and their visual similarity.

valência is recorded at frequency rank #19,877, classified as anoun, pronounced /vɐ.ˈlẽ.sjɐ/. vigência is at rank #17,943, tagged as anoun, pronounced /vi.ˈʒẽ.sjɐ/.

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 37820, this pair ranks #28,747 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of valência vs vigência

Shared letters: acinvê. Private to "valência": l. Private to "vigência": g.

"valência" · 8 letters · shape CVCVCCVV  ·  "vigência" · 8 letters · shape CVCVCCVV

Frequently Asked Questions

Can "valência" and "vigência" be used interchangeably?
No. They are said differently (/vɐ.ˈlẽ.sjɐ/ versus /vi.ˈʒẽ.sjɐ/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
In ordinary Portuguese text, does "valência" or "vigência" show up more?
"vigência" is the more common of the two: it sits at frequency rank #17,943 in our Portuguese list, against #19,877 for "valência". 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 "valência" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "vigência" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #28,747 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "valência" and "vigência" also get mixed up with nearby pairs, the highest-scored neighbour is "valência vs valentia". Nearby pair

Confusion rank #28,747 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