IonsvsitsWhich spelling fits?

Quick tell: Ions is a name, its is a determiner, so they fill different roles in a sentence.

Which to use

“Ions” is a name and “its” is a determiner - they look or sound alike but fill different roles in a sentence.

#14,573
“Ions” frequency rank
#75
“its” frequency rank
14648
confusion score

Side-by-Side Comparison

Feature Ions its
Definition A surname originating as a patronymic. Belonging to it.

Letter map: Ions vs its

Shared letters muted; letters that set Ions and its apart highlighted. Shared run: 2.

4 ch
Ions
3 ch
its

Role in the sentence - Ions and its

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: Ions is aname and itsadeterminer. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 14648, derived from the frequency rank of both members and their visual similarity.

Ions is recorded at frequency rank #14,573, classified as aname. its is at rank #75, tagged as adet, 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 14648, this pair ranks #468,782 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of Ions vs its

Shared letters: is. Private to "Ions": no. Private to "its": t.

"Ions" · 4 letters · shape VVCC  ·  "its" · 3 letters · shape VCC

Known mistypes of this pair

  • Ionsinos · ionns · ionss · iosn · oins

Frequently Asked Questions

Do "Ions" and "its" mean the same thing in a sentence?
No - they are not even the same part of speech. "Ions" is a name and "its" a determiner, so a sentence built for one is usually ungrammatical with the other.
In ordinary English text, does "Ions" or "its" show up more?
"its" is the more common of the two: it sits at frequency rank #75 in our English list, against #14,573 for "Ions". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Useful next steps

Done with this confusable. These links stay specific to "Ions" and "its".

  • Full dictionary entry for "Ions" 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 #468,782 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "Ions" and "its" also get mixed up with nearby pairs, the highest-scored neighbour is "ices vs Ions". 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 #468,782 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list