por vs py, What's the Difference?

Which to use

“por” is a preposition and “py” is a noun - they look or sound alike but fill different roles in a sentence.

#12
“por” frequency rank: #38,327
“py” frequency rank: 38339
confusion score

Side-by-Side Comparison

Feature	por	py
Definition	Indica el complemento agente en la voz pasiva.	Pie, pata trasera de los cuadrúpedos.

Where the eye mixes por and py

Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.

3 ch

por

2 ch

Look-alike desk: por vs py

These two trip readers on the page rather than in the ear: por is [poɾ] while py is /ˈpɨ/. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (preposition vs noun), which is usually the fastest check. Our composite confusion score for this pair is 38339, derived from the frequency rank of both members and their visual similarity.

por is recorded at frequency rank #12, classified as aprep, pronounced [poɾ]. py is at rank #38,327, tagged as anoun, pronounced /ˈpɨ/.

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 38339, this pair ranks #170,572 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of por vs py

Shared letters: p. Private to "por": or. Private to "py": y.

"por" · 3 letters · shape CVC · "py" · 2 letters · shape CV

Frequently Asked Questions

Can "por" and "py" be used interchangeably?

No - they are not even the same part of speech. "por" is a preposition and "py" a noun, so a sentence built for one is usually ungrammatical with the other.

In ordinary Spanish text, does "por" or "py" show up more?

"por" is the more common of the two: it sits at frequency rank #12 in our Spanish list, against #38,327 for "py". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

What to do next

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

Full dictionary entry for "por" with definition, IPA, and generated misspellings. Word entry
Full dictionary entry for "py" - compare definitions side by side with the headword page. Word entry
This pair ranks #170,572 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
"por" and "py" also get mixed up with nearby pairs, the highest-scored neighbour is "prey vs py". Nearby pair

Confusion rank #170,572 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.