Which to use
“peak” is a noun and “per” is a preposition - they look or sound alike but fill different roles in a sentence.
- #36,150
- “peak” frequency rank
- #5,775
- “per” frequency rank
- 41925
- confusion score
Side-by-Side Comparison
| Feature | peak | per |
|---|---|---|
| Definition | pico | por |
Letter map: peak vs per
Shared letters muted; letters that set peak and per apart highlighted. Shared run: 2.
Part-of-speech tell for peak / per
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: peak is anoun and perapreposition. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 41925, derived from the frequency rank of both members and their visual similarity.
peak is recorded at frequency rank #36,150, classified as anoun, pronounced /pi:k/. per is at rank #5,775, tagged as aprep.
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 41925, this pair ranks #23,922 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of peak vs per
Shared letters: ep. Private to "peak": ak. Private to "per": r.
"peak" · 4 letters · shape CVVC · "per" · 3 letters · shape CVC
Known mistypes of this pair
- peak ← epak · paek · peakk · peka · ppeak
Frequently Asked Questions
Do "peak" and "per" mean the same thing in a sentence?
Which is more common, "peak" or "per"?
What to do next
You've compared "peak" and "per". Here's where to go from here.
- Full dictionary entry for "peak" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "per" - compare definitions side by side with the headword page. Word entry
- This pair ranks #23,922 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "peak" and "per" also get mixed up with nearby pairs, the highest-scored neighbour is "peach vs peak". 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 #23,922 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.