internovsinternosWhich spelling fits?

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

Which to use

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

#2,989
“interno” frequency rank
#3,932
“internos” frequency rank
6921
confusion score

Side-by-Side Comparison

Feature interno internos
Definition Que está dentro de algo. Forma del plural de interno.

Where the eye mixes interno and internos

Muted = shared; highlighted = the visual trap. They share 7 letters in sequence.

7 ch
interno
8 ch
internos

Visual trap between interno and internos

These two trip readers on the page rather than in the ear: interno is [ĩn̪ˈt̪eɾno] while internos is [ĩn̪ˈt̪eɾnos]. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 extra letter(s) - “interno” sits inside “internos”, and the parts of speech differ too (adjective vs noun), which is usually the fastest check. Our composite confusion score for this pair is 6921, derived from the frequency rank of both members and their visual similarity.

interno is recorded at frequency rank #2,989, classified as anadj, pronounced [ĩn̪ˈt̪eɾno]. internos is at rank #3,932, tagged as anoun, pronounced [ĩn̪ˈt̪eɾnos].

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 6921, this pair ranks #309,448 of 323,831 scored Spanish confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of interno vs internos

Shared letters: einort. Private to "interno": -. Private to "internos": s.

"interno" · 7 letters · shape VCCVCCV  ·  "internos" · 8 letters · shape VCCVCCVC

Known mistypes of this pair

  • internoinetrno · innterno · intenro · internno · interon · interrno · intreno · intterno
  • internosinetrnos · innternos · intenros · internnos · internoss · internso · interons · interrnos

Frequently Asked Questions

Can "interno" and "internos" be used interchangeably?
No - they are not even the same part of speech. "interno" is an adjective and "internos" a noun, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "interno" vs "internos" - which ranks higher?
"interno" is the more common of the two: it sits at frequency rank #2,989 in our Spanish list, against #3,932 for "internos". 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 "interno" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "internos" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #309,448 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "interno" and "internos" also get mixed up with nearby pairs, the highest-scored neighbour is "injertos vs internos". 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 #309,448 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