persvspusTell them apart

Quick tell: pers is a pronoun, pus is a noun, so they fill different roles in a sentence.

Which to use

“pers” is a pronoun and “pus” is a noun - they look or sound alike but fill different roles in a sentence.

#36,278
“pers” frequency rank
#28,336
“pus” frequency rank
64614
confusion score

Side-by-Side Comparison

Feature pers pus
Definition That which belongs to per, theirs (singular): possessive case of per, used in place of a noun. A whitish-yellow or yellow substance composed primarily of dead white blood cells and dead pyogenic bacteria, normally found in regions of bacterial infection.

Letter map: pers vs pus

Shared letters muted; letters that set pers and pus apart highlighted. Shared run: 2.

4 ch
pers
3 ch
pus

Role in the sentence - pers and pus

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: pers is apronoun and pusanoun. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 64614, derived from the frequency rank of both members and their visual similarity.

pers is recorded at frequency rank #36,278, classified as apron. pus is at rank #28,336, tagged as anoun, pronounced /pʌs/.

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 64614, this pair ranks #76,826 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of pers vs pus

Shared letters: ps. Private to "pers": er. Private to "pus": u.

"pers" · 4 letters · shape CVCC  ·  "pus" · 3 letters · shape CVC

Known mistypes of this pair

  • perseprs · perrs · pesr · ppers

Frequently Asked Questions

Can "pers" and "pus" be used interchangeably?
No - they are not even the same part of speech. "pers" is a pronoun and "pus" a noun, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "pers" vs "pus" - which ranks higher?
"pus" is the more common of the two: it sits at frequency rank #28,336 in our English list, against #36,278 for "pers". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Pair "pers" vs "pus" is on the table, pick a follow-up below.

  • Full dictionary entry for "pers" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "pus" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #76,826 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "pers" and "pus" also get mixed up with nearby pairs, the highest-scored neighbour is "pecs vs pers". 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 #76,826 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