dogvsduaWhich spelling fits?

Quick tell: dog is a noun, dua is a verb, so they fill different roles in a sentence.

Which to use

“dog” is a noun and “dua” is a verb - they look or sound alike but fill different roles in a sentence.

#8,326
“dog” frequency rank
#39,112
“dua” frequency rank
47438
confusion score

Side-by-Side Comparison

Feature dog dua
Definition cão, cachorro querer

Where the eye mixes dog and dua

Muted = shared; highlighted = the visual trap. They share 1 letter in sequence. dog (CVC) and dua (CVV) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.

3 ch
dog
3 ch
dua

Why the eye confuses dog with dua

These two trip readers on the page rather than in the ear: dog is /dɔɡ/ while dua is /ˈdwa/. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (noun vs verb), which is usually the fastest check. Our composite confusion score for this pair is 47438, derived from the frequency rank of both members and their visual similarity.

dog is recorded at frequency rank #8,326, classified as anoun, pronounced /dɔɡ/. dua is at rank #39,112, tagged as averb, pronounced /ˈdwa/.

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 47438, this pair ranks #17,811 of 75,631 scored Portuguese confusable pairs - among the most confusable pairs.

Orthographic DNA of dog vs dua

Shared letters: d. Private to "dog": go. Private to "dua": au.

"dog" · 3 letters · shape CVC  ·  "dua" · 3 letters · shape CVV

Frequently Asked Questions

Is swapping "dog" for "dua" ever safe?
No - they are not even the same part of speech. "dog" is a noun and "dua" a verb, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "dog" or "dua"?
"dog" is the more common of the two: it sits at frequency rank #8,326 in our Portuguese list, against #39,112 for "dua". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Eye-level mix-up between "dog" and "dua" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "dog" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "dua" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #17,811 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "dog" and "dua" also get mixed up with nearby pairs, the highest-scored neighbour is "dat vs dua". Nearby pair

Confusion rank #17,811 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