Which to use
“Petr” is a name and “petra” is a noun - they look or sound alike but fill different roles in a sentence.
- #32,535
- “Petr” frequency rank
- #20,457
- “petra” frequency rank
- 52992
- confusion score
Side-by-Side Comparison
| Feature | Petr | petra |
|---|---|---|
| Definition | Alternative form of Pyotr. | stone, a weight equal to 14 pounds. |
Letter map: Petr vs petra
Shared letters muted; letters that set Petr and petra apart highlighted. Shared run: 4. Petr runs 4 letters (CVCC) against petra's 5 (CVCCV) - the length gap alone is often enough to separate them once you know to check it.
Grammar separator: Petr vs petra
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: Petr is aname and petraanoun. On the page they differ by 1 extra letter(s) - “Petr” sits inside “petra”. Our composite confusion score for this pair is 52992, derived from the frequency rank of both members and their visual similarity.
Petr is recorded at frequency rank #32,535, classified as aname. 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 52992, this pair ranks #152,539 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of Petr vs petra
Shared letters: eprt. Private to "Petr": -. Private to "petra": a.
"Petr" · 4 letters · shape CVCC · "petra" · 5 letters · shape CVCCV
Known mistypes of this pair
Frequently Asked Questions
Is swapping "Petr" for "petra" ever safe?
In ordinary English text, does "Petr" or "petra" show up more?
What to do next
Pair "Petr" vs "petra" is on the table, pick a follow-up below.
- Full dictionary entry for "Petr" 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 #152,539 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "Petr" and "petra" also get mixed up with nearby pairs, the highest-scored neighbour is "pecs vs Petr". 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 #152,539 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.