pulgavspulsaWhat's the difference?

Quick tell: pulga is a noun, pulsa is a verb, so they fill different roles in a sentence.

Which to use

“pulga” is a noun and “pulsa” is a verb - they look or sound alike but fill different roles in a sentence.

#31,940
“pulga” frequency rank
#31,941
“pulsa” frequency rank
63881
confusion score

Side-by-Side Comparison

Feature pulga pulsa
Definition Pequeño insecto del orden Siphonaptera. Son parásitos externos que viven de la sangre. Sus patas posteriores contienen fibras de una proteína elástica que les permiten dar saltos enormes en relación a su tamaño. Tercera persona del singular (él, ella, ello; usted, 2.ª persona) del presente de indicativo de pulsar.

Where the eye mixes pulga and pulsa

Muted = shared; highlighted = the visual trap. They share 4 letters in sequence. pulga and pulsa follow the identical consonant-vowel pattern (CVCCV). Same shape at a glance is often the real trap, independent of shared letters.

5 ch
pulga
5 ch
pulsa

Visual trap between pulga and pulsa

These two trip readers on the page rather than in the ear: pulga is [ˈpulɣ̞a] while pulsa is [ˈpulsa]. Spoken aloud the problem disappears. In writing it persists, because they differ by a single letter - g in “pulga” becomes s in “pulsa”, and the parts of speech differ too (noun vs verb), which is usually the fastest check. Our composite confusion score for this pair is 63881, derived from the frequency rank of both members and their visual similarity.

pulga is recorded at frequency rank #31,940, classified as anoun, pronounced [ˈpulɣ̞a]. pulsa is at rank #31,941, tagged as averb, pronounced [ˈpulsa].

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 63881, this pair ranks #47,280 of 323,831 scored Spanish confusable pairs - among the most confusable pairs.

Orthographic DNA of pulga vs pulsa

Shared letters: alpu. Private to "pulga": g. Private to "pulsa": s.

"pulga" · 5 letters · shape CVCCV  ·  "pulsa" · 5 letters · shape CVCCV

Known mistypes of this pair

  • pulga ← pluga · ppulga · pugla · pulag · pulgga · pullga · uplga
  • pulsa ← plusa · ppulsa · pulas · pullsa · pulssa · pusla · uplsa

Frequently Asked Questions

Can "pulga" and "pulsa" be used interchangeably?
No - they are not even the same part of speech. "pulga" is a noun and "pulsa" a verb, so a sentence built for one is usually ungrammatical with the other.
In ordinary Spanish text, does "pulga" or "pulsa" show up more?
"pulga" is the more common of the two: it sits at frequency rank #31,940 in our Spanish list, against #31,941 for "pulsa". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Eye-level mix-up between "pulga" and "pulsa" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "pulga" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "pulsa" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #47,280 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "pulga" and "pulsa" also get mixed up with nearby pairs, the highest-scored neighbour is "pulida vs pulsa". 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 #47,280 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