infecciónvsinyecciónWhich spelling fits?

Which to use

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

#6,547
“infección” frequency rank
#9,665
“inyección” frequency rank
16212
confusion score

Side-by-Side Comparison

Feature infección inyección
Definition Acción o efecto de infectar o de infectarse. Acción o efecto de inyectar.

Where the eye mixes infección and inyección

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

9 ch
infección
9 ch
inyección

Visual trap between infección and inyección

A purely visual mix-up. infección ([ĩɱfekˈsjõn]) and inyección ([ĩɲʝekˈsjõn]) 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 a single letter - f in “infección” becomes y in “inyección”. Our composite confusion score for this pair is 16212, derived from the frequency rank of both members and their visual similarity.

infección is recorded at frequency rank #6,547, classified as anoun, pronounced [ĩɱfekˈsjõn]. inyección is at rank #9,665, tagged as anoun, pronounced [ĩɲʝekˈsjõn].

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 16212, this pair ranks #277,059 of 323,831 scored Spanish confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of infección vs inyección

Shared letters: ceinó. Private to "infección": f. Private to "inyección": y.

"infección" · 9 letters · shape VCCVCCVVC  ·  "inyección" · 9 letters · shape VCVVCCVVC

Frequently Asked Questions

Is swapping "infección" for "inyección" ever safe?
No. They are said differently ([ĩɱfekˈsjõn] versus [ĩɲʝekˈsjõn]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "infección" vs "inyección" - which ranks higher?
"infección" is the more common of the two: it sits at frequency rank #6,547 in our Spanish list, against #9,665 for "inyección". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

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

  • Full dictionary entry for "infección" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "inyección" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #277,059 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "infección" and "inyección" also get mixed up with nearby pairs, the highest-scored neighbour is "infección vs infecciosa". Nearby pair

Confusion rank #277,059 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