Which to use
“not” is an adverb and “now” is an adjective - they look or sound alike but fill different roles in a sentence.
- #23
- “not” frequency rank
- #72
- “now” frequency rank
- 95
- confusion score
Side-by-Side Comparison
| Feature | not | now |
|---|---|---|
| Definition | Negates the meaning of the modified verb. | Present; current. |
Where the eye mixes not and now
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Why the eye confuses not with now
These two trip readers on the page rather than in the ear: not is /nɒt/ while now is /naʊ/. Spoken aloud the problem disappears. In writing it persists, because they differ by a single letter - t in “not” becomes w in “now”, and the parts of speech differ too (adverb vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 95, derived from the frequency rank of both members and their visual similarity.
not is recorded at frequency rank #23, classified as anadv, pronounced /nɒt/. now is at rank #72, tagged as anadj, pronounced /naʊ/.
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 95, this pair ranks #529,891 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of not vs now
Shared letters: no. Private to "not": t. Private to "now": w.
"not" · 3 letters · shape CVC · "now" · 3 letters · shape CVC
Frequently Asked Questions
Can "not" and "now" be used interchangeably?
Which is more common, "not" or "now"?
After this comparison
Eye-level mix-up between "not" and "now" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "not" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "now" - compare definitions side by side with the headword page. Word entry
- This pair ranks #529,891 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "not" and "now" also get mixed up with nearby pairs, the highest-scored neighbour is "now vs NPL". Nearby pair
Confusion rank #529,891 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.