Which to use
“ach” is an intj and “afi” is a noun - they look or sound alike but fill different roles in a sentence.
- #48,212
- “ach” frequency rank
- #41,804
- “afi” frequency rank
- 90016
- confusion score
Side-by-Side Comparison
| Feature | ach | afi |
|---|---|---|
| Definition | oh | avô. |
Letter map: ach vs afi
Shared letters muted; letters that set ach and afi apart highlighted. Shared run: 1. ach (VCC) and afi (VCV) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.
Grammar separator: ach vs afi
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: ach is anintj and afianoun. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 90016, derived from the frequency rank of both members and their visual similarity.
ach is recorded at frequency rank #48,212, classified as anintj. afi is at rank #41,804, tagged as anoun, pronounced [ˈaːvɪ], Plural: [ˈaːvar̥].
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 90016, this pair ranks #290 of 75,631 scored Portuguese confusable pairs - among the most confusable pairs.
Orthographic DNA of ach vs afi
Shared letters: a. Private to "ach": ch. Private to "afi": fi.
"ach" · 3 letters · shape VCC · "afi" · 3 letters · shape VCV
Frequently Asked Questions
Is swapping "ach" for "afi" ever safe?
In ordinary Portuguese text, does "ach" or "afi" show up more?
Useful next steps
You've compared "ach" and "afi". Here's where to go from here.
- Full dictionary entry for "ach" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "afi" - compare definitions side by side with the headword page. Word entry
- This pair ranks #290 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "ach" and "afi" also get mixed up with nearby pairs, the highest-scored neighbour is "ach vs acs". Nearby pair
Confusion rank #290 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.