pecvspensConfusable pair

Which to use

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

#47,251
“pec” frequency rank
#10,421
“pens” frequency rank
57672
confusion score

Side-by-Side Comparison

Feature pec pens
Definition The pectoralis major muscle. plural of pen

Letter map: pec vs pens

Shared letters muted; letters that set pec and pens apart highlighted. Shared run: 2.

3 ch
pec
4 ch
pens

Corpus notes: pec and pens

pec and pens 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 57672, derived from the frequency rank of both members and their visual similarity.

pec is recorded at frequency rank #47,251, classified as anoun. pens is at rank #10,421, tagged as anoun, pronounced /pɛnz/.

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 57672, this pair ranks #117,810 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of pec vs pens

Shared letters: ep. Private to "pec": c. Private to "pens": ns.

"pec" · 3 letters · shape CVC  ·  "pens" · 4 letters · shape CVCC

Known mistypes of this pair

  • pensepns · penns · penss · pesn · pnes · ppens

Frequently Asked Questions

Can "pec" and "pens" be used interchangeably?
No. They differ by 1 letter(s) in length, but the dictionary glosses above give them different meanings, so swapping one for the other changes what the sentence says.
In ordinary English text, does "pec" or "pens" show up more?
"pens" is the more common of the two: it sits at frequency rank #10,421 in our English list, against #47,251 for "pec". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

You've compared "pec" and "pens". Here's where to go from here.

  • Full dictionary entry for "pec" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "pens" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #117,810 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "pec" and "pens" 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 #117,810 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