Which to use
“per” is a preposition and “petra” is a noun - they look or sound alike but fill different roles in a sentence.
- #339
- “per” frequency rank
- #20,457
- “petra” frequency rank
- 20796
- confusion score
Side-by-Side Comparison
| Feature | per | petra |
|---|---|---|
| Definition | For each. | stone, a weight equal to 14 pounds. |
Letter map: per vs petra
Shared letters muted; letters that set per and petra apart highlighted. Shared run: 3.
Spelling & Dictionary Insight
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: per is apreposition and petraanoun. On the page they differ by 2 letter(s) in length. Our composite confusion score for this pair is 20796, derived from the frequency rank of both members and their visual similarity.
per is recorded at frequency rank #339, classified as aprep, pronounced /pɜː/. petra is at rank #20,457, tagged as anoun.
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 20796, this pair ranks #428,593 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of per vs petra
Shared letters: epr. Private to "per": -. Private to "petra": at.
"per" · 3 letters · shape CVC · "petra" · 5 letters · shape CVCCV
Known mistypes of this pair
- petra ← eptra · perta · petar · petrra · pettra · ppetra · ptera
Frequently Asked Questions
Can "per" and "petra" be used interchangeably?
Which is more common, "per" or "petra"?
What to do next
You've compared "per" and "petra". Here's where to go from here.
- Full dictionary entry for "per" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "petra" - compare definitions side by side with the headword page. Word entry
- This pair ranks #428,593 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "per" and "petra" also get mixed up with nearby pairs, the highest-scored neighbour is "Petey vs petra". 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
PlainSpell is a reference corpus, not spelling advice. Verify unusual forms in context.