Which to use
“islet” is a noun and “isn't” is a verb - they look or sound alike but fill different roles in a sentence.
- #38,916
- “islet” frequency rank
- #376
- “isn't” frequency rank
- 39292
- confusion score
Side-by-Side Comparison
| Feature | islet | isn't |
|---|---|---|
| Definition | A small island. | Contraction of is + not (negative auxiliary). |
Where the spellings diverge
Shared letters are muted; the letters that actually set islet and isn't apart are highlighted. They share 3 letters in sequence, which is exactly why the eye skips the difference.
Spelling & Dictionary Insight
These two trip readers on the page rather than in the ear: islet is /ˈaɪ.lət/ while isn't is /ˈɪz.ənt/. 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 (noun vs verb), which is usually the fastest check. Our composite confusion score for this pair is 39292, derived from the frequency rank of both members and their visual similarity.
islet is recorded at frequency rank #38,916, classified as anoun, pronounced /ˈaɪ.lət/. isn't is at rank #376, tagged as averb, pronounced /ˈɪz.ənt/.
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 39292, this pair ranks #278,011 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of islet vs isn't
Shared letters: ist. Private to "islet": el. Private to "isn't": n.
"islet" · 5 letters · shape VCCVC · "isn't" · 4 letters · shape VCCC
Known mistypes of this pair
- islet ← ilset · iselt · islett · isllet · islte · isslet · silet
Frequency comparison
Frequently Asked Questions
Can "islet" and "isn't" be used interchangeably?
Which is more common, "islet" or "isn't"?
Remembering islet vs isn't
The fastest way to pick the right one every time.
- Check the role first: if you need a noun, it's “islet”; for a verb, it's “isn't”.
- See each word in full, definition, IPA, etymology and its other confusables. Full “islet” entry
- Browse more pairs most likely to be confused. Most confusable