Which to use
“in” is a preposition and “iron” is a noun - they look or sound alike but fill different roles in a sentence.
- #269
- “in” frequency rank
- #13,963
- “iron” frequency rank
- 14232
- confusion score
Side-by-Side Comparison
| Feature | in | iron |
|---|---|---|
| Definition | em | ferro, elemento químico de número atômico 26 e símbolo Fe |
Letter map: in vs iron
Shared letters muted; letters that set in and iron apart highlighted. Shared run: 2.
Role in the sentence - in and iron
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: in is apreposition and ironanoun. On the page they differ by 2 letter(s) in length. Our composite confusion score for this pair is 14232, derived from the frequency rank of both members and their visual similarity.
in is recorded at frequency rank #269, classified as aprep. iron is at rank #13,963, tagged as anoun, pronounced /ˈaɪərn/, ouvir^(fonte ?).
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 14232, this pair ranks #57,924 of 75,631 scored Portuguese confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of in vs iron
Shared letters: in. Private to "in": -. Private to "iron": or.
"in" · 2 letters · shape VC · "iron" · 4 letters · shape VCVC
Known mistypes of this pair
- iron ← iorn · irno · ironn · irron · rion
Frequently Asked Questions
Is swapping "in" for "iron" ever safe?
Which is more common, "in" or "iron"?
Useful next steps
Pair "in" vs "iron" is on the table, pick a follow-up below.
- Full dictionary entry for "in" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "iron" - compare definitions side by side with the headword page. Word entry
- This pair ranks #57,924 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "in" and "iron" also get mixed up with nearby pairs, the highest-scored neighbour is "ino vs iron". 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 #57,924 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.