Which to use
“louco” is an adjective and “lousa” is a noun - they look or sound alike but fill different roles in a sentence.
- #1,649
- “louco” frequency rank
- #32,242
- “lousa” frequency rank
- 33891
- confusion score
Side-by-Side Comparison
| Feature | louco | lousa |
|---|---|---|
| Definition | que perdeu a razão, maluco, demente, vesano, amente | quadro-negro |
Where the spellings diverge
Shared letters are muted; the letters that actually set louco and lousa apart are highlighted. They share 3 letters in sequence, which is exactly why the eye skips the difference.
Spelling & Dictionary Insight
louco and lousa form a confusable pair in the Portuguese index, two distinct headwords that are easily confused because they look alike, sound alike, or both. They share most of their letters but differ in 2 positions - close enough that the eye skips over the difference, far enough that meaning fully diverges. Our composite confusion score for this pair is 33891, derived from the frequency rank of both members and their visual similarity.
louco is recorded at frequency rank #1,649, classified as anadj. lousa is at rank #32,242, tagged as anoun, pronounced /ˈlow.zɐ/.
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 33891, this pair ranks #33,506 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.
Frequency comparison
Frequently Asked Questions
Can "louco" and "lousa" be used interchangeably?
Remembering louco vs lousa
The fastest way to pick the right one every time.
- Check the role first: if you need an adjective, it's “louco”; for a noun, it's “lousa”.
- See each word in full, definition, IPA, etymology and its other confusables. Full “louco” entry
- Browse more pairs most likely to be confused. Most confusable