Which to use
“IES” is an abbrev and “ist” is a verb - they look or sound alike but fill different roles in a sentence.
- #21,019
- “IES” frequency rank
- #41,994
- “ist” frequency rank
- 63013
- confusion score
Side-by-Side Comparison
| Feature | IES | ist |
|---|---|---|
| Definition | Instituto de Educación Secundaria (España). | Tercera persona del singular (er, sie, es) del presente de indicativo de sein. |
Where the eye mixes IES and ist
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence. IES (VVC) and ist (VCC) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.
Look-alike desk: IES vs ist
These two trip readers on the page rather than in the ear: IES is [ˈjes] while ist is /ɪst/. 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 (abbrev vs verb), which is usually the fastest check. Our composite confusion score for this pair is 63013, derived from the frequency rank of both members and their visual similarity.
IES is recorded at frequency rank #21,019, classified as anabbrev, pronounced [ˈjes]. ist is at rank #41,994, 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 63013, this pair ranks #50,137 of 323,831 scored Spanish confusable pairs - among the most confusable pairs.
Orthographic DNA of IES vs ist
Shared letters: is. Private to "IES": e. Private to "ist": t.
"IES" · 3 letters · shape VVC · "ist" · 3 letters · shape VCC
Frequently Asked Questions
Is swapping "IES" for "ist" ever safe?
Which is more common, "IES" or "ist"?
Useful next steps
Eye-level mix-up between "IES" and "ist" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "IES" 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 #50,137 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "IES" and "ist" also get mixed up with nearby pairs, the highest-scored neighbour is "ist vs iza". Nearby pair
Confusion rank #50,137 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.