físicovsfísicosTell them apart

Quick tell: físico is a adjective, físicos is a noun, so they fill different roles in a sentence.

Which to use

“físico” is an adjective and “físicos” is a noun - they look or sound alike but fill different roles in a sentence.

#2,611
“físico” frequency rank
#6,683
“físicos” frequency rank
9294
confusion score

Side-by-Side Comparison

Feature físico físicos
Definition Que está relacionado con la física. Forma del plural de físico.

Where the eye mixes físico and físicos

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

6 ch
físico
7 ch
físicos

Look-alike desk: físico vs físicos

These two trip readers on the page rather than in the ear: físico is [ˈfisiko] while físicos is [ˈfisikos]. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 extra letter(s) - “físico” sits inside “físicos”, and the parts of speech differ too (adjective vs noun), which is usually the fastest check. Our composite confusion score for this pair is 9294, derived from the frequency rank of both members and their visual similarity.

físico is recorded at frequency rank #2,611, classified as anadj, pronounced [ˈfisiko]. físicos is at rank #6,683, tagged as anoun, pronounced [ˈfisikos].

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 9294, this pair ranks #302,352 of 323,831 scored Spanish confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of físico vs físicos

Shared letters: cfiosí. Private to "físico": -. Private to "físicos": -.

"físico" · 6 letters · shape CVCVCV  ·  "físicos" · 7 letters · shape CVCVCVC

Frequently Asked Questions

Can "físico" and "físicos" be used interchangeably?
No - they are not even the same part of speech. "físico" is an adjective and "físicos" a noun, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "físico" vs "físicos" - which ranks higher?
"físico" is the more common of the two: it sits at frequency rank #2,611 in our Spanish list, against #6,683 for "físicos". 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 "físico" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "físicos" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #302,352 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "físico" and "físicos" also get mixed up with nearby pairs, the highest-scored neighbour is "finitos vs físicos". Nearby pair

Confusion rank #302,352 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