adiciónvsadopciónWhich spelling fits?

Which to use

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

#12,747
“adición” frequency rank
#4,848
“adopción” frequency rank
17595
confusion score

Side-by-Side Comparison

Feature adición adopción
Definition Acción o efecto de sumar, añadir, agregar o adicionar. Acto legal mediante el cual se crea un vínculo de parentesco entre dos personas, que generalmente establece una relación de paternidad y/o maternidad.

Where the eye mixes adición and adopción

Muted = shared; highlighted = the visual trap. They share 6 letters in sequence. adición runs 7 letters (VCVCVVC) against adopción's 8 (VCVCCVVC) - the length gap alone is often enough to separate them once you know to check it.

7 ch
adición
8 ch
adopción

Visual trap between adición and adopción

A purely visual mix-up. adición ([að̞iˈsjõn]) and adopción ([að̞opˈsjõn]) 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 17595, derived from the frequency rank of both members and their visual similarity.

adición is recorded at frequency rank #12,747, classified as anoun, pronounced [að̞iˈsjõn]. adopción is at rank #4,848, tagged as anoun, pronounced [að̞opˈsjõn].

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 17595, this pair ranks #271,492 of 323,831 scored Spanish confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of adición vs adopción

Shared letters: acdinó. Private to "adición": -. Private to "adopción": op.

"adición" · 7 letters · shape VCVCVVC  ·  "adopción" · 8 letters · shape VCVCCVVC

Frequently Asked Questions

Is swapping "adición" for "adopción" ever safe?
No. They are said differently ([að̞iˈsjõn] versus [að̞opˈsjõn]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "adición" vs "adopción" - which ranks higher?
"adopción" is the more common of the two: it sits at frequency rank #4,848 in our Spanish list, against #12,747 for "adición". 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 "adición" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "adopción" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #271,492 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "adición" and "adopción" also get mixed up with nearby pairs, the highest-scored neighbour is "adopción vs adopciones". Nearby pair

Confusion rank #271,492 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