padvsproWhich spelling fits?

Quick tell: pad is a noun, pro is a preposition, so they fill different roles in a sentence.

Which to use

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

#31,908
“pad” frequency rank
#1,421
“pro” frequency rank
33329
confusion score

Side-by-Side Comparison

Feature pad pro
Definition Periférico táctil presente en las notebooks y otros dispositivos portátiles que permite el movimiento de un cursor sobre una interfaz gráfica; funciona como alternativa al mouse. Úsase para indicar el beneficiario de una acción o iniciativa.

Where the eye mixes pad and pro

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

3 ch
pad
3 ch
pro

Look-alike desk: pad vs pro

These two trip readers on the page rather than in the ear: pad is [ˈpað̞] while pro is [ˈpɾo]. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (noun vs preposition), which is usually the fastest check. Our composite confusion score for this pair is 33329, derived from the frequency rank of both members and their visual similarity.

pad is recorded at frequency rank #31,908, classified as anoun, pronounced [ˈpað̞]. pro is at rank #1,421, tagged as aprep, pronounced [ˈpɾo].

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 33329, this pair ranks #197,347 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of pad vs pro

Shared letters: p. Private to "pad": ad. Private to "pro": or.

"pad" · 3 letters · shape CVC  ·  "pro" · 3 letters · shape CCV

Frequently Asked Questions

Do "pad" and "pro" mean the same thing in a sentence?
No - they are not even the same part of speech. "pad" is a noun and "pro" a preposition, so a sentence built for one is usually ungrammatical with the other.
In ordinary Spanish text, does "pad" or "pro" show up more?
"pro" is the more common of the two: it sits at frequency rank #1,421 in our Spanish list, against #31,908 for "pad". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

After this comparison

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

  • Full dictionary entry for "pad" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "pro" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #197,347 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "pad" and "pro" also get mixed up with nearby pairs, the highest-scored neighbour is "pad vs PRC". Nearby pair

Confusion rank #197,347 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list