focasvsfocoConfusable pair

Which to use

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

#27,995
“focas” frequency rank
#6,680
“foco” frequency rank
34675
confusion score

Side-by-Side Comparison

Feature focas foco
Definition Forma del plural de foca. Punto físico en el que convergen los rayos de luz reflejados o refractados por una lente o espejo.

Where the eye mixes focas and foco

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.

5 ch
focas
4 ch
foco

Why the eye confuses focas with foco

A purely visual mix-up. focas ([ˈfokas]) and foco ([ˈfoko]) 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 34675, derived from the frequency rank of both members and their visual similarity.

focas is recorded at frequency rank #27,995, classified as anoun, pronounced [ˈfokas]. foco is at rank #6,680, tagged as anoun, pronounced [ˈfoko].

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 34675, this pair ranks #190,194 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of focas vs foco

Shared letters: cfo. Private to "focas": as. Private to "foco": -.

"focas" · 5 letters · shape CVCVC  ·  "foco" · 4 letters · shape CVCV

Known mistypes of this pair

  • focasfcoas · ffocas · foacs · focass · foccas · focsa · ofcas
  • focofcoo · ffoco · focco · fooc · ofco

Frequently Asked Questions

Is swapping "focas" for "foco" ever safe?
No. They are said differently ([ˈfokas] versus [ˈfoko]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "focas" or "foco"?
"foco" is the more common of the two: it sits at frequency rank #6,680 in our Spanish list, against #27,995 for "focas". 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 "focas" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "foco" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #190,194 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "focas" and "foco" also get mixed up with nearby pairs, the highest-scored neighbour is "flojas vs focas". 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 #190,194 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