peakvspecsWhat's the difference?

Which to use

“peak” and “pecs” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#2,847
“peak” frequency rank
#49,538
“pecs” frequency rank
52385
confusion score

Side-by-Side Comparison

Feature peak pecs
Definition A point; the sharp end or top of anything that terminates in a point; as, the peak, or front, of a cap. plural of pec

Where the eye mixes peak and pecs

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence. peak (CVVC) and pecs (CVCC) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.

4 ch
peak
4 ch
pecs

Why the eye confuses peak with pecs

A purely visual mix-up. peak (/piːk/) and pecs (/pɛks/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 52385, 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/. pecs is at rank #49,538, tagged as anoun, pronounced /pɛks/.

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 52385, this pair ranks #157,488 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of peak vs pecs

Shared letters: ep. Private to "peak": ak. Private to "pecs": cs.

"peak" · 4 letters · shape CVVC  ·  "pecs" · 4 letters · shape CVCC

Known mistypes of this pair

  • peak ← epak · paek · peakk · peka · ppeak
  • pecs ← epcs · pces · peccs · pecss · pesc · ppecs

Frequently Asked Questions

Can "peak" and "pecs" be used interchangeably?
No. They are said differently (/piːk/ versus /pɛks/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "peak" vs "pecs" - which ranks higher?
"peak" is the more common of the two: it sits at frequency rank #2,847 in our English list, against #49,538 for "pecs". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Useful next steps

Eye-level mix-up between "peak" and "pecs" 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 "pecs" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #157,488 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "peak" and "pecs" also get mixed up with nearby pairs, the highest-scored neighbour is "peasy vs pecs". 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 #157,488 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list