Which to use
“ISO” is a noun and “ist” is a verb - they look or sound alike but fill different roles in a sentence.
- #8,887
- “ISO” frequency rank
- #7
- “ist” frequency rank
- 8894
- confusion score
Side-by-Side Comparison
| Feature | ISO | ist |
|---|---|---|
| Definition | Internationale Organisation für Normung (International Organization for Standardization); Vereinigung von Normungsorganisationen, die internationale Normen erarbeitet | 3. Person Singular Indikativ Präsens des Verbs sein |
Where the eye mixes ISO and ist
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Spelling & Dictionary Insight
These two trip readers on the page rather than in the ear: ISO is [iːsoː] while ist is [ɪst]. Spoken aloud the problem disappears. In writing it persists, because they differ by a single letter - o in “ISO” becomes t in “ist”, and the parts of speech differ too (noun vs verb), which is usually the fastest check. Our composite confusion score for this pair is 8894, derived from the frequency rank of both members and their visual similarity.
ISO is recorded at frequency rank #8,887, classified as anoun, pronounced [iːsoː]. ist is at rank #7, tagged as averb, pronounced [ɪst].
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 8894, this pair ranks #1,982,337 of 2,006,359 scored German confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of ISO vs ist
Shared letters: is. Private to "ISO": o. Private to "ist": t.
"ISO" · 3 letters · shape VCV · "ist" · 3 letters · shape VCC
Frequently Asked Questions
Can "ISO" and "ist" be used interchangeably?
Which is more common, "ISO" or "ist"?
What to do next
You've compared "ISO" and "ist". Here's where to go from here.
- Full dictionary entry for "ISO" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "ist" - compare definitions side by side with the headword page. Word entry
- This pair ranks #1,982,337 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
- "ISO" and "ist" also get mixed up with nearby pairs, the highest-scored neighbour is "IMs vs ISO". Nearby pair
PlainSpell is a reference corpus, not spelling advice. Verify unusual forms in context.