ópticavsópticosWhich spelling fits?

Which to use

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

#8,459
“óptica” frequency rank
#38,462
“ópticos” frequency rank
46921
confusion score

Side-by-Side Comparison

Feature óptica ópticos
Definition Forma del femenino de óptico. Forma del masculino plural de óptico.

Where the eye mixes óptica and ópticos

Muted = shared; highlighted = the visual trap. They share 5 letters in sequence. óptica runs 6 letters (VCCVCV) against ópticos's 7 (VCCVCVC) - the length gap alone is often enough to separate them once you know to check it.

6 ch
óptica
7 ch
ópticos

Visual trap between óptica and ópticos

A purely visual mix-up. óptica ([ˈopt̪ika]) and ópticos ([ˈopt̪ikos]) 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 46921, derived from the frequency rank of both members and their visual similarity.

óptica is recorded at frequency rank #8,459, classified as anadj, pronounced [ˈopt̪ika]. ópticos is at rank #38,462, tagged as anadj, pronounced [ˈopt̪ikos].

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 46921, this pair ranks #122,990 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of óptica vs ópticos

Shared letters: ciptó. Private to "óptica": a. Private to "ópticos": os.

"óptica" · 6 letters · shape VCCVCV  ·  "ópticos" · 7 letters · shape VCCVCVC

Frequently Asked Questions

Is swapping "óptica" for "ópticos" ever safe?
No. They are said differently ([ˈopt̪ika] versus [ˈopt̪ikos]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "óptica" vs "ópticos" - which ranks higher?
"óptica" is the more common of the two: it sits at frequency rank #8,459 in our Spanish list, against #38,462 for "ópticos". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "óptica" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "ópticos" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #122,990 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "óptica" and "ópticos" also get mixed up with nearby pairs, the highest-scored neighbour is "ópticos vs óptimos". Nearby pair

Confusion rank #122,990 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