Which to use
“isa” is a noun and “ist” is a verb - they look or sound alike but fill different roles in a sentence.
- #17,738
- “isa” frequency rank
- #41,994
- “ist” frequency rank
- 59732
- confusion score
Side-by-Side Comparison
| Feature | isa | ist |
|---|---|---|
| Definition | Estilo musical vocal, en ritmo de tres cuartos, típico de las Islas Canarias. | Tercera persona del singular (er, sie, es) del presente de indicativo de sein. |
Where the eye mixes isa and ist
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Look-alike desk: isa vs ist
These two trip readers on the page rather than in the ear: isa is [ˈisa] while ist is /ɪst/. Spoken aloud the problem disappears. In writing it persists, because they differ by a single letter - a in “isa” 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 59732, derived from the frequency rank of both members and their visual similarity.
isa is recorded at frequency rank #17,738, classified as anoun, pronounced [ˈisa]. 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 59732, this pair ranks #61,523 of 323,831 scored Spanish confusable pairs - among the most confusable pairs.
Orthographic DNA of isa vs ist
Shared letters: is. Private to "isa": a. Private to "ist": t.
"isa" · 3 letters · shape VCV · "ist" · 3 letters · shape VCC
Frequently Asked Questions
Can "isa" and "ist" be used interchangeably?
Frequency check: "isa" vs "ist" - which ranks higher?
After this comparison
Eye-level mix-up between "isa" and "ist" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "isa" 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 #61,523 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "isa" and "ist" also get mixed up with nearby pairs, the highest-scored neighbour is "ist vs iza". Nearby pair
Confusion rank #61,523 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.