afiliaciónvsampliaciónTell them apart

Which to use

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

#12,964
“afiliación” frequency rank
#5,793
“ampliación” frequency rank
18757
confusion score

Side-by-Side Comparison

Feature afiliación ampliación
Definition Acción o efecto de afiliar o de afiliarse (hacer(se) oficialmente miembro de una organización o grupo; inscribirse; incorporarse). Acción o efecto de ampliar (hacer más amplio, aumentar en tamaño, profundidad, contenido, cantidad, duración, etc.).

Where the eye mixes afiliación and ampliación

Muted = shared; highlighted = the visual trap. They share 8 letters in sequence. afiliación (VCVCVVCVVC) and ampliación (VCCCVVCVVC) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.

10 ch
afiliación
10 ch
ampliación

Visual trap between afiliación and ampliación

A purely visual mix-up. afiliación ([afiljaˈsjõn]) and ampliación ([ãmpljaˈsjõn]) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 18757, derived from the frequency rank of both members and their visual similarity.

afiliación is recorded at frequency rank #12,964, classified as anoun, pronounced [afiljaˈsjõn]. ampliación is at rank #5,793, tagged as anoun, pronounced [ãmpljaˈsjõn].

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 18757, this pair ranks #266,600 of 323,831 scored Spanish confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of afiliación vs ampliación

Shared letters: acilnó. Private to "afiliación": f. Private to "ampliación": mp.

"afiliación" · 10 letters · shape VCVCVVCVVC  ·  "ampliación" · 10 letters · shape VCCCVVCVVC

Frequently Asked Questions

Can "afiliación" and "ampliación" be used interchangeably?
No. They are said differently ([afiljaˈsjõn] versus [ãmpljaˈsjõn]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "afiliación" or "ampliación"?
"ampliación" is the more common of the two: it sits at frequency rank #5,793 in our Spanish list, against #12,964 for "afiliación". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "afiliación" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "ampliación" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #266,600 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "afiliación" and "ampliación" also get mixed up with nearby pairs, the highest-scored neighbour is "afiliación vs afinación". Nearby pair

Confusion rank #266,600 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