pet vs PU, What's the Difference?

Which to use

“pet” is a noun and “PU” is an intj - they look or sound alike but fill different roles in a sentence.

#3,323
“pet” frequency rank: #16,315
“PU” frequency rank: 19638
confusion score

Side-by-Side Comparison

Feature	pet	PU
Definition	An animal kept as a companion or otherwise for pleasure, rather than for some practical benefit or use.	Alternative form of P U; expression used when encountering a displeasing smell; exaggerated pronunciation of pew.

Letter map: pet vs PU

Shared letters muted; letters that set pet and PU apart highlighted. Shared run: 1.

3 ch

pet

2 ch

Grammar separator: pet vs PU

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: pet is anoun and PUanintj. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 19638, derived from the frequency rank of both members and their visual similarity.

pet is recorded at frequency rank #3,323, classified as anoun, pronounced /pɛt/. PU is at rank #16,315, tagged as anintj.

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 19638, this pair ranks #436,768 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of pet vs PU

Shared letters: p. Private to "pet": et. Private to "PU": u.

"pet" · 3 letters · shape CVC · "PU" · 2 letters · shape CV

Frequently Asked Questions

Is swapping "pet" for "PU" ever safe?

No - they are not even the same part of speech. "pet" is a noun and "PU" an intj, so a sentence built for one is usually ungrammatical with the other.

In ordinary English text, does "pet" or "PU" show up more?

"pet" is the more common of the two: it sits at frequency rank #3,323 in our English list, against #16,315 for "PU". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Done with this confusable. These links stay specific to "pet" and "PU".

Full dictionary entry for "pet" with definition, IPA, and generated misspellings. Word entry
Full dictionary entry for "PU" - compare definitions side by side with the headword page. Word entry
This pair ranks #436,768 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
"pet" and "PU" also get mixed up with nearby pairs, the highest-scored neighbour is "PPA vs PU". Nearby pair

Confusion rank #436,768 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.