Which to use
“pec” and “pest” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #47,251
- “pec” frequency rank
- #12,295
- “pest” frequency rank
- 59546
- confusion score
Side-by-Side Comparison
| Feature | pec | pest |
|---|---|---|
| Definition | The pectoralis major muscle. | A pestilence, i.e. a deadly epidemic, a deadly plague. |
Letter map: pec vs pest
Shared letters muted; letters that set pec and pest apart highlighted. Shared run: 2.
Pair insight - pec / pest
pec and pest 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 letter(s) in length. Our composite confusion score for this pair is 59546, derived from the frequency rank of both members and their visual similarity.
pec is recorded at frequency rank #47,251, classified as anoun. pest is at rank #12,295, tagged as anoun, pronounced /pɛst/.
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 59546, this pair ranks #105,497 of 530,003 scored English confusable pairs - among the most confusable pairs.
Orthographic DNA of pec vs pest
Shared letters: ep. Private to "pec": c. Private to "pest": st.
"pec" · 3 letters · shape CVC · "pest" · 4 letters · shape CVCC
Known mistypes of this pair
- pest ← epst · pesst · pestt · ppest · pset
Frequently Asked Questions
Is swapping "pec" for "pest" ever safe?
Which is more common, "pec" or "pest"?
After this comparison
Pair "pec" vs "pest" is on the table, pick a follow-up below.
- Full dictionary entry for "pec" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "pest" - compare definitions side by side with the headword page. Word entry
- This pair ranks #105,497 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "pec" and "pest" also get mixed up with nearby pairs, the highest-scored neighbour is "pec vs PPA". 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 #105,497 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.