lacavslauTell them apart

Quick tell: laca is a noun, lau is an adjective, so they fill different roles in a sentence.

Which to use

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

#48,502
“laca” frequency rank
#21,230
“lau” frequency rank
69732
confusion score

Side-by-Side Comparison

Feature laca lau
Definition resina ou goma resinosa obtida de certas árvores no Oriente morno, tépido:

Where the eye mixes laca and lau

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

4 ch
laca
3 ch
lau

Look-alike desk: laca vs lau

These two trip readers on the page rather than in the ear: laca is /ˈla.kɐ/ while lau is /ˈlaʊ̯/. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (noun vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 69732, derived from the frequency rank of both members and their visual similarity.

laca is recorded at frequency rank #48,502, classified as anoun, pronounced /ˈla.kɐ/. lau is at rank #21,230, tagged as anadj, pronounced /ˈlaʊ̯/.

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 69732, this pair ranks #3,861 of 75,631 scored Portuguese confusable pairs - among the most confusable pairs.

Orthographic DNA of laca vs lau

Shared letters: al. Private to "laca": c. Private to "lau": u.

"laca" · 4 letters · shape CVCV  ·  "lau" · 3 letters · shape CVV

Known mistypes of this pair

  • lacaalca · laac · lacca · lcaa · llaca

Frequently Asked Questions

Do "laca" and "lau" mean the same thing in a sentence?
No - they are not even the same part of speech. "laca" is a noun and "lau" an adjective, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "laca" or "lau"?
"lau" is the more common of the two: it sits at frequency rank #21,230 in our Portuguese list, against #48,502 for "laca". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "laca" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "lau" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #3,861 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "laca" and "lau" also get mixed up with nearby pairs, the highest-scored neighbour is "laca vs loch". 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 #3,861 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