IsisvsIslaWhich spelling fits?

Which to use

“Isis” and “Isla” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#4,536
“Isis” frequency rank
#23,318
“Isla” frequency rank
27854
confusion score

Side-by-Side Comparison

Feature Isis Isla
Definition An ancient Egyptian goddess, the wife of Osiris and mother of Horus, worshiped as the ideal mother and wife and as the matron of nature and magic; also worshiped by (some) Greeks during the Hellenistic period and featured in Greek mythology, and by Romans involved in what was categorized as the Cult of Isis. A river in Angus and Perth and Kinross, east-central Scotland, tributary to the Tay.

Where the eye mixes Isis and Isla

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

4 ch
Isis
4 ch
Isla

Why the eye confuses Isis with Isla

A purely visual mix-up. Isis (/ˈaɪ.sɪs/) and Isla (/aɪlə/) 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 27854, derived from the frequency rank of both members and their visual similarity.

Isis is recorded at frequency rank #4,536, classified as aname, pronounced /ˈaɪ.sɪs/. Isla is at rank #23,318, tagged as aname, pronounced /aɪlə/.

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 27854, this pair ranks #375,585 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of Isis vs Isla

Shared letters: is. Private to "Isis": -. Private to "Isla": al.

"Isis" · 4 letters · shape VCVC  ·  "Isla" · 4 letters · shape VCCV

Known mistypes of this pair

  • Isisiiss · isiss · issi · issis · siis
  • Islaisal · islla · issla · sila

Frequently Asked Questions

Can "Isis" and "Isla" be used interchangeably?
No. They are said differently (/ˈaɪ.sɪs/ versus /aɪlə/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "Isis" or "Isla"?
"Isis" is the more common of the two: it sits at frequency rank #4,536 in our English list, against #23,318 for "Isla". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

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

  • Full dictionary entry for "Isis" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "Isla" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #375,585 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "Isis" and "Isla" also get mixed up with nearby pairs, the highest-scored neighbour is "Ilan vs Isla". 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 #375,585 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