Which to use
“Isla” is a name and “issa” is a contraction - they look or sound alike but fill different roles in a sentence.
- #23,318
- “Isla” frequency rank
- #21,249
- “issa” frequency rank
- 44567
- confusion score
Side-by-Side Comparison
| Feature | Isla | issa |
|---|---|---|
| Definition | A river in Angus and Perth and Kinross, east-central Scotland, tributary to the Tay. | Contraction of it's + a. |
Where the eye mixes Isla and issa
Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.
Look-alike desk: Isla vs issa
These two trip readers on the page rather than in the ear: Isla is /aɪlə/ while issa is /ˈɪsə/. Spoken aloud the problem disappears. In writing it persists, because they differ by a single letter - l in “Isla” becomes s in “issa”, and the parts of speech differ too (name vs contraction), which is usually the fastest check. Our composite confusion score for this pair is 44567, derived from the frequency rank of both members and their visual similarity.
Isla is recorded at frequency rank #23,318, classified as aname, pronounced /aɪlə/. issa is at rank #21,249, tagged as acontraction, pronounced /ˈɪsə/.
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 44567, this pair ranks #229,323 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of Isla vs issa
Shared letters: ais. Private to "Isla": l. Private to "issa": -.
"Isla" · 4 letters · shape VCCV · "issa" · 4 letters · shape VCCV
Known mistypes of this pair
Frequently Asked Questions
Do "Isla" and "issa" mean the same thing in a sentence?
In ordinary English text, does "Isla" or "issa" show up more?
What to do next
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "Isla" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "issa" - compare definitions side by side with the headword page. Word entry
- This pair ranks #229,323 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "Isla" and "issa" 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 #229,323 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.