Which to use
“back” is a noun and “bai” is a preposition - they look or sound alike but fill different roles in a sentence.
- #4,042
- “back” frequency rank
- #27,371
- “bai” frequency rank
- 31413
- confusion score
Side-by-Side Comparison
| Feature | back | bai |
|---|---|---|
| Definition | cigarro de maconha; beque | de acordo com; conforme |
Letter map: back vs bai
Shared letters muted; letters that set back and bai apart highlighted. Shared run: 2.
Grammar separator: back vs bai
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: back is anoun and baiapreposition. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 31413, derived from the frequency rank of both members and their visual similarity.
back is recorded at frequency rank #4,042, classified as anoun. bai is at rank #27,371, tagged as aprep, pronounced /ba.ˈi/.
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 31413, this pair ranks #36,686 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of back vs bai
Shared letters: ab. Private to "back": ck. Private to "bai": i.
"back" · 4 letters · shape CVCC · "bai" · 3 letters · shape CVV
Known mistypes of this pair
- back ← abck · bacck · backk · bakc · bback · bcak
Frequently Asked Questions
Do "back" and "bai" mean the same thing in a sentence?
Which is more common, "back" or "bai"?
Useful next steps
You've compared "back" and "bai". Here's where to go from here.
- Full dictionary entry for "back" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "bai" - compare definitions side by side with the headword page. Word entry
- This pair ranks #36,686 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "back" and "bai" also get mixed up with nearby pairs, the highest-scored neighbour is "bai vs bué". 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 #36,686 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.