Which to use
“primeira” is a noun and “primeiro” is an adjective - they look or sound alike but fill different roles in a sentence.
- #191
- “primeira” frequency rank
- #142
- “primeiro” frequency rank
- 333
- confusion score
Side-by-Side Comparison
| Feature | primeira | primeiro |
|---|---|---|
| Definition | uma das marchas do motor de um veículo | refere-se àquele que ocupa a posição inicial em uma série; o mais antigo; o que vem antes |
Where the spellings diverge
Shared letters are muted; the letters that actually set primeira and primeiro apart are highlighted. They share 7 letters in sequence, which is exactly why the eye skips the difference.
Spelling & Dictionary Insight
primeira and primeiro form a confusable pair in the Portuguese index, two distinct headwords that are easily confused because they look alike, sound alike, or both. They differ by a single letter - a in “primeira” becomes o in “primeiro” - close enough that the eye skips over the difference, far enough that meaning fully diverges. Our composite confusion score for this pair is 333, derived from the frequency rank of both members and their visual similarity.
primeira is recorded at frequency rank #191, classified as anoun, pronounced /pɾi.ˈmɐj.ɾɐ/. primeiro is at rank #142, tagged as anadj, pronounced [pɾi.ˈmej.ɾʊ].
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 333, this pair ranks #75,302 of 75,631 scored Portuguese confusable pairs - a relatively easy-to-tell-apart pair.
Frequency comparison
Frequently Asked Questions
Can "primeira" and "primeiro" be used interchangeably?
Remembering primeira vs primeiro
The fastest way to pick the right one every time.
- Check the role first: if you need a noun, it's “primeira”; for an adjective, it's “primeiro”.
- See each word in full, definition, IPA, etymology and its other confusables. Full “primeira” entry
- Browse more pairs most likely to be confused. Most confusable