Which to use
“pec” and “pecs” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #47,251
- “pec” frequency rank
- #49,538
- “pecs” frequency rank
- 96789
- confusion score
Side-by-Side Comparison
| Feature | pec | pecs |
|---|---|---|
| Definition | The pectoralis major muscle. | plural of pec |
Letter map: pec vs pecs
Shared letters muted; letters that set pec and pecs apart highlighted. Shared run: 3. pec runs 3 letters (CVC) against pecs's 4 (CVCC) - the length gap alone is often enough to separate them once you know to check it.
Spelling & dictionary notes on pec vs pecs
pec and pecs are indexed as a confusable English pair. We have no recorded pronunciation or part of speech for both members, so the spelling overlap is what we can show you: they differ by 1 extra letter(s) - “pec” sits inside “pecs”. Our composite confusion score for this pair is 96789, derived from the frequency rank of both members and their visual similarity.
pec is recorded at frequency rank #47,251, classified as anoun. 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 96789, this pair ranks #471 of 530,003 scored English confusable pairs - among the most confusable pairs.
Orthographic DNA of pec vs pecs
Shared letters: cep. Private to "pec": -. Private to "pecs": s.
"pec" · 3 letters · shape CVC · "pecs" · 4 letters · shape CVCC
Known mistypes of this pair
- pecs ← epcs · pces · peccs · pecss · pesc · ppecs
Frequently Asked Questions
Can "pec" and "pecs" be used interchangeably?
Frequency check: "pec" vs "pecs" - which ranks higher?
What to do next
You've compared "pec" and "pecs". Here's where to go from here.
- Full dictionary entry for "pec" 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 #471 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "pec" 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 #471 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.