Which to use
“peak” is a noun and “pert” is an adjective - they look or sound alike but fill different roles in a sentence.
- #2,847
- “peak” frequency rank
- #47,823
- “pert” frequency rank
- 50670
- confusion score
Side-by-Side Comparison
| Feature | peak | pert |
|---|---|---|
| Definition | A point; the sharp end or top of anything that terminates in a point; as, the peak, or front, of a cap. | Attractive. |
Where the eye mixes peak and pert
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence. peak (CVVC) and pert (CVCC) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.
Look-alike desk: peak vs pert
These two trip readers on the page rather than in the ear: peak is /piːk/ while pert is /pɜːt/. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (noun vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 50670, derived from the frequency rank of both members and their visual similarity.
peak is recorded at frequency rank #2,847, classified as anoun, pronounced /piːk/. pert is at rank #47,823, tagged as anadj, pronounced /pɜːt/.
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 50670, this pair ranks #172,185 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of peak vs pert
Shared letters: ep. Private to "peak": ak. Private to "pert": rt.
"peak" · 4 letters · shape CVVC · "pert" · 4 letters · shape CVCC
Known mistypes of this pair
Frequently Asked Questions
Is swapping "peak" for "pert" ever safe?
Frequency check: "peak" vs "pert" - which ranks higher?
After this comparison
Eye-level mix-up between "peak" and "pert" 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 "pert" - compare definitions side by side with the headword page. Word entry
- This pair ranks #172,185 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "peak" and "pert" also get mixed up with nearby pairs, the highest-scored neighbour is "pecs vs pert". 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 #172,185 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.