Which to use
“blackest” is an adjective and “blackout” is a noun - they look or sound alike but fill different roles in a sentence.
- #42,030
- “blackest” frequency rank
- #13,287
- “blackout” frequency rank
- 55317
- confusion score
Side-by-Side Comparison
| Feature | blackest | blackout |
|---|---|---|
| Definition | superlative form of black: most black | A temporary loss of consciousness. |
Where the eye mixes blackest and blackout
Muted = shared; highlighted = the visual trap. They share 6 letters in sequence. blackest (CCVCCVCC) and blackout (CCVCCVVC) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.
Why the eye confuses blackest with blackout
These two trip readers on the page rather than in the ear: blackest is /blækəst/ while blackout is /ˈblæk.aʊt/. 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 (adjective vs noun), which is usually the fastest check. Our composite confusion score for this pair is 55317, derived from the frequency rank of both members and their visual similarity.
blackest is recorded at frequency rank #42,030, classified as anadj, pronounced /blækəst/. blackout is at rank #13,287, tagged as anoun, pronounced /ˈblæk.aʊt/.
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 55317, this pair ranks #134,553 of 530,003 scored English confusable pairs - among the most confusable pairs.
Orthographic DNA of blackest vs blackout
Shared letters: abcklt. Private to "blackest": es. Private to "blackout": ou.
"blackest" · 8 letters · shape CCVCCVCC · "blackout" · 8 letters · shape CCVCCVVC
Known mistypes of this pair
Frequently Asked Questions
Can "blackest" and "blackout" be used interchangeably?
Which is more common, "blackest" or "blackout"?
Useful next steps
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "blackest" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "blackout" - compare definitions side by side with the headword page. Word entry
- This pair ranks #134,553 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "blackest" and "blackout" also get mixed up with nearby pairs, the highest-scored neighbour is "blacker vs blackest". 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 #134,553 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.