illvsitsWhat's the difference?

Which to use

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

#43,059
“ill” frequency rank
#18,002
“its” frequency rank
61061
confusion score

Side-by-Side Comparison

Feature ill its
Definition Enfermo. Su, sus; que pertenece a un animal o una cosa.

Where the eye mixes ill and its

Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.

3 ch
ill
3 ch
its

Why the eye confuses ill with its

A purely visual mix-up. ill (/ɪl/) and its (/ɪts/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 61061, derived from the frequency rank of both members and their visual similarity.

ill is recorded at frequency rank #43,059, classified as anadj, pronounced /ɪl/. its is at rank #18,002, tagged as anadj, pronounced /ɪts/.

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 61061, this pair ranks #56,766 of 323,831 scored Spanish confusable pairs - among the most confusable pairs.

Orthographic DNA of ill vs its

Shared letters: i. Private to "ill": l. Private to "its": st.

"ill" · 3 letters · shape VCC  ·  "its" · 3 letters · shape VCC

Frequently Asked Questions

Do "ill" and "its" mean the same thing in a sentence?
No. They are said differently (/ɪl/ versus /ɪts/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "ill" vs "its" - which ranks higher?
"its" is the more common of the two: it sits at frequency rank #18,002 in our Spanish list, against #43,059 for "ill". 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 "ill" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "its" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #56,766 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "ill" and "its" also get mixed up with nearby pairs, the highest-scored neighbour is "ill vs iza". Nearby pair

Confusion rank #56,766 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