Which to use
“oblast” is a noun and “outlast” is a verb - they look or sound alike but fill different roles in a sentence.
- #45,551
- “oblast” frequency rank
- #36,697
- “outlast” frequency rank
- 82248
- confusion score
Side-by-Side Comparison
| Feature | oblast | outlast |
|---|---|---|
| Definition | A region or province in Slavic or Slavic-influenced countries. | To live, last or remain longer than. |
Where the eye mixes oblast and outlast
Muted = shared; highlighted = the visual trap. They share 5 letters in sequence. oblast runs 6 letters (VCCVCC) against outlast's 7 (VVCCVCC) - the length gap alone is often enough to separate them once you know to check it.
Visual trap between oblast and outlast
These two trip readers on the page rather than in the ear: oblast is /ˈɒblæst/ while outlast is /ˌaʊtˈlɑːst/. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (noun vs verb), which is usually the fastest check. Our composite confusion score for this pair is 82248, derived from the frequency rank of both members and their visual similarity.
oblast is recorded at frequency rank #45,551, classified as anoun, pronounced /ˈɒblæst/. outlast is at rank #36,697, tagged as averb, pronounced /ˌaʊtˈlɑːst/.
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 82248, this pair ranks #16,090 of 530,003 scored English confusable pairs - among the most confusable pairs.
Orthographic DNA of oblast vs outlast
Shared letters: alost. Private to "oblast": b. Private to "outlast": u.
"oblast" · 6 letters · shape VCCVCC · "outlast" · 7 letters · shape VVCCVCC
Known mistypes of this pair
Frequently Asked Questions
Can "oblast" and "outlast" be used interchangeably?
In ordinary English text, does "oblast" or "outlast" show up more?
What to do next
Eye-level mix-up between "oblast" and "outlast" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "oblast" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "outlast" - compare definitions side by side with the headword page. Word entry
- This pair ranks #16,090 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "oblast" and "outlast" also get mixed up with nearby pairs, the highest-scored neighbour is "outlast vs outlay". 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 #16,090 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.