idemvsítemWhat's the difference?

Quick tell: idem is a pronoun, ítem is an adverb, so they fill different roles in a sentence.

Which to use

“idem” is a pronoun and “ítem” is an adverb - they look or sound alike but fill different roles in a sentence.

#22,050
“idem” frequency rank
#31,605
“ítem” frequency rank
53655
confusion score

Side-by-Side Comparison

Feature idem ítem
Definition Mismo, el mismo. Úsase para introducir cada uno de los acápites de un texto o los elementos de una lista.

Where the eye mixes idem and ítem

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

4 ch
idem
4 ch
ítem

Why the eye confuses idem with ítem

These two trip readers on the page rather than in the ear: idem is /ˈiː.dem/ while ítem is [ˈit̪ẽm]. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (pronoun vs adverb), which is usually the fastest check. Our composite confusion score for this pair is 53655, derived from the frequency rank of both members and their visual similarity.

idem is recorded at frequency rank #22,050, classified as apron, pronounced /ˈiː.dem/. ítem is at rank #31,605, tagged as anadv, pronounced [ˈit̪ẽm].

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 53655, this pair ranks #86,847 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of idem vs ítem

Shared letters: em. Private to "idem": di. Private to "ítem": .

"idem" · 4 letters · shape VCVC  ·  "ítem" · 4 letters · shape VCVC

Known mistypes of this pair

  • idemiddem · idemm · iedm

Frequently Asked Questions

Is swapping "idem" for "ítem" ever safe?
No - they are not even the same part of speech. "idem" is a pronoun and "ítem" an adverb, so a sentence built for one is usually ungrammatical with the other.
In ordinary Spanish text, does "idem" or "ítem" show up more?
"idem" is the more common of the two: it sits at frequency rank #22,050 in our Spanish list, against #31,605 for "ítem". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

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

  • Full dictionary entry for "idem" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "ítem" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #86,847 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "idem" and "ítem" also get mixed up with nearby pairs, the highest-scored neighbour is "imam vs ítem". 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 #86,847 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