peakvsperWhich spelling fits?

Quick tell: peak is a noun, per is a preposition, so they fill different roles in a sentence.

Which to use

“peak” is a noun and “per” is a preposition - they look or sound alike but fill different roles in a sentence.

#20,363
“peak” frequency rank
#673
“per” frequency rank
21036
confusion score

Side-by-Side Comparison

Feature peak per
Definition der Punkt eines Berges; Gipfel, Spitze, Bergspitze, Gipfelpunkt mittels

Where the eye mixes peak and per

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

4 ch
peak
3 ch
per

Visual trap between peak and per

These two trip readers on the page rather than in the ear: peak is [piːk] while per is [pɛʁ]. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (noun vs preposition), which is usually the fastest check. Our composite confusion score for this pair is 21036, derived from the frequency rank of both members and their visual similarity.

peak is recorded at frequency rank #20,363, classified as anoun, pronounced [piːk]. per is at rank #673, tagged as aprep, pronounced [pɛʁ].

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 21036, this pair ranks #1,890,887 of 2,006,359 scored German confusable pairs - a relatively easy-to-tell-apart pair.

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

  • peakepak · paek · peakk · peka · ppeak

Frequently Asked Questions

Do "peak" and "per" mean the same thing in a sentence?
No - they are not even the same part of speech. "peak" is a noun and "per" a preposition, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "peak" or "per"?
"per" is the more common of the two: it sits at frequency rank #673 in our German list, against #20,363 for "peak". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

What to do next

Eye-level mix-up between "peak" and "per" is sorted above. Next: full entries or other pairs that share a letter shape.

  • 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 #1,890,887 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "peak" and "per" also get mixed up with nearby pairs, the highest-scored neighbour is "peak vs prank". 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 #1,890,887 of 2,006,359 scored German pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list