extensionvsextensionesTell them apart

Which to use

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

#32,661
“extension” frequency rank
#12,819
“extensiones” frequency rank
45480
confusion score

Side-by-Side Comparison

Feature extension extensiones
Definition Extensión. Forma del plural de extensión.

Where the eye mixes extension and extensiones

Muted = shared; highlighted = the visual trap. They share 9 letters in sequence. extension runs 9 letters (VCCVCCVVC) against extensiones's 11 (VCCVCCVVCVC) - the length gap alone is often enough to separate them once you know to check it.

9 ch
extension
11 ch
extensiones

Look-alike desk: extension vs extensiones

A purely visual mix-up. extension ([ɛk.stɑ̃.sjɔ̃]) and extensiones ([ekst̪ẽnˈsjones]) 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 2 extra letter(s) - “extension” sits inside “extensiones”. Our composite confusion score for this pair is 45480, derived from the frequency rank of both members and their visual similarity.

extension is recorded at frequency rank #32,661, classified as anoun, pronounced [ɛk.stɑ̃.sjɔ̃]. extensiones is at rank #12,819, tagged as anoun, pronounced [ekst̪ẽnˈsjones].

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 45480, this pair ranks #131,211 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of extension vs extensiones

Shared letters: einostx. Private to "extension": -. Private to "extensiones": -.

"extension" · 9 letters · shape VCCVCCVVC  ·  "extensiones" · 11 letters · shape VCCVCCVVCVC

Known mistypes of this pair

  • extension ← etxension · exetnsion · extencion · extenison · extennsion · extensino · extensionn · extensoin
  • extensiones ← etxensiones · exetnsiones · extenciones · extenisones · extennsiones · extensinoes · extensioens · extensioness

Frequently Asked Questions

Do "extension" and "extensiones" mean the same thing in a sentence?
No. They are said differently ([ɛk.stɑ̃.sjɔ̃] versus [ekst̪ẽnˈsjones]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "extension" or "extensiones"?
"extensiones" is the more common of the two: it sits at frequency rank #12,819 in our Spanish list, against #32,661 for "extension". 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 "extension" and "extensiones" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "extension" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "extensiones" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #131,211 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "extension" and "extensiones" also get mixed up with nearby pairs, the highest-scored neighbour is "extendían vs extension". 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 #131,211 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