ilícitovsilícitosTell them apart

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

Which to use

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

#14,866
“ilícito” frequency rank
#24,183
“ilícitos” frequency rank
39049
confusion score

Side-by-Side Comparison

Feature ilícito ilícitos
Definition Que está fuera de lo legal, de lo moral o de las reglas establecidas. Forma del plural de ilícito.

Where the eye mixes ilícito and ilícitos

Muted = shared; highlighted = the visual trap. They share 7 letters in sequence. ilícito runs 7 letters (VCVCVCV) against ilícitos's 8 (VCVCVCVC) - the length gap alone is often enough to separate them once you know to check it.

7 ch
ilícito
8 ch
ilícitos

Visual trap between ilícito and ilícitos

These two trip readers on the page rather than in the ear: ilícito is [iˈlisit̪o] while ilícitos is [iˈlisit̪os]. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 extra letter(s) - “ilícito” sits inside “ilícitos”, and the parts of speech differ too (adjective vs noun), which is usually the fastest check. Our composite confusion score for this pair is 39049, derived from the frequency rank of both members and their visual similarity.

ilícito is recorded at frequency rank #14,866, classified as anadj, pronounced [iˈlisit̪o]. ilícitos is at rank #24,183, tagged as anoun, pronounced [iˈlisit̪os].

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 39049, this pair ranks #166,671 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of ilícito vs ilícitos

Shared letters: cilotí. Private to "ilícito": -. Private to "ilícitos": s.

"ilícito" · 7 letters · shape VCVCVCV  ·  "ilícitos" · 8 letters · shape VCVCVCVC

Frequently Asked Questions

Do "ilícito" and "ilícitos" mean the same thing in a sentence?
No - they are not even the same part of speech. "ilícito" is an adjective and "ilícitos" a noun, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "ilícito" vs "ilícitos" - which ranks higher?
"ilícito" is the more common of the two: it sits at frequency rank #14,866 in our Spanish list, against #24,183 for "ilícitos". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "ilícito" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "ilícitos" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #166,671 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "ilícito" and "ilícitos" also get mixed up with nearby pairs, the highest-scored neighbour is "ilícitas vs ilícitos". Nearby pair

Confusion rank #166,671 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