plagavsplasmaWhich spelling fits?

Which to use

“plaga” and “plasma” are a confusable Spanish pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#10,047
“plaga” frequency rank
#11,652
“plasma” frequency rank
21699
confusion score

Side-by-Side Comparison

Feature plaga plasma
Definition Conjunto de insectos, roedores, bacterias o cualquier ser vivo que se encuentra en una densidad tal que puede dañar o constituir una amenaza para el ser humano y su bienestar. Parte líquida de la sangre y la linfa, y líquido de la misma composición que baña espacios corporales como el líquido cefalorraquideano o fluído intersticial.

Where the eye mixes plaga and plasma

Muted = shared; highlighted = the visual trap. They share 4 letters in sequence.

5 ch
plaga
6 ch
plasma

Visual trap between plaga and plasma

A purely visual mix-up. plaga ([ˈplaɣ̞a]) and plasma ([ˈplasma]) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 21699, derived from the frequency rank of both members and their visual similarity.

plaga is recorded at frequency rank #10,047, classified as anoun, pronounced [ˈplaɣ̞a]. plasma is at rank #11,652, tagged as anoun, pronounced [ˈplasma].

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 21699, this pair ranks #253,725 of 323,831 scored Spanish confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of plaga vs plasma

Shared letters: alp. Private to "plaga": g. Private to "plasma": ms.

"plaga" · 5 letters · shape CCVCV  ·  "plasma" · 6 letters · shape CCVCCV

Known mistypes of this pair

  • plagalpaga · palga · plaag · plagga · plgaa · pllaga · pplaga
  • plasmalpasma · palsma · plamsa · plasam · plasmma · plassma · pllasma · plsama

Frequently Asked Questions

Can "plaga" and "plasma" be used interchangeably?
No. They are said differently ([ˈplaɣ̞a] versus [ˈplasma]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
In ordinary Spanish text, does "plaga" or "plasma" show up more?
"plaga" is the more common of the two: it sits at frequency rank #10,047 in our Spanish list, against #11,652 for "plasma". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

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

  • Full dictionary entry for "plaga" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "plasma" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #253,725 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "plaga" and "plasma" also get mixed up with nearby pairs, the highest-scored neighbour is "plasma vs plasmada". 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 #253,725 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