pero vs porco, What's the Difference?

Which to use

“pero” is a conjunction and “porco” is an adjective - they look or sound alike but fill different roles in a sentence.

#17,884
“pero” frequency rank: #5,878
“porco” frequency rank: 23762
confusion score

Side-by-Side Comparison

Feature	pero	porco
Definition	mas, porém	que é muito sujo, imundo

Where the spellings diverge

Shared letters are muted; the letters that actually set pero and porco apart are highlighted. They share 3 letters in sequence, which is exactly why the eye skips the difference.

4 ch

pero

5 ch

porco

Spelling & Dictionary Insight

These two trip readers on the page rather than in the ear: pero is /ˈpe.ɾu/ while porco is /ˈpoɾ.ku/. 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 (conjunction vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 23762, derived from the frequency rank of both members and their visual similarity.

pero is recorded at frequency rank #17,884, classified as aconj, pronounced /ˈpe.ɾu/. porco is at rank #5,878, tagged as anadj, pronounced /ˈpoɾ.ku/.

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 23762, this pair ranks #45,997 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of pero vs porco

Shared letters: opr. Private to "pero": e. Private to "porco": c.

"pero" · 4 letters · shape CVCV · "porco" · 5 letters · shape CVCCV

Known mistypes of this pair

pero ← epro · peor · perro · ppero · preo
porco ← oprco · pocro · porcco · poroc · porrco · pporco · proco

Frequency comparison

pero#17,884

porco#5,878

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "pero" and "porco" be used interchangeably?

No - they are not even the same part of speech. "pero" is a conjunction and "porco" an adjective, so a sentence built for one is usually ungrammatical with the other.

Which is more common, "pero" or "porco"?

"porco" is the more common of the two: it sits at frequency rank #5,878 in our Portuguese list, against #17,884 for "pero". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Remembering pero vs porco

The fastest way to pick the right one every time.

Check the role first: if you need a conjunction, it's “pero”; for an adjective, it's “porco”.
See each word in full, definition, IPA, etymology and its other confusables. Full “pero” entry
Browse more pairs most likely to be confused. Most confusable