Which to use
“intensify” is a verb and “intensity” is a noun - they look or sound alike but fill different roles in a sentence.
- #23,571
- “intensify” frequency rank
- #5,697
- “intensity” frequency rank
- 29268
- confusion score
Side-by-Side Comparison
| Feature | intensify | intensity |
|---|---|---|
| Definition | To render more intense. | The quality of being intense. |
Where the eye mixes intensify and intensity
Muted = shared; highlighted = the visual trap. They share 8 letters in sequence.
Look-alike desk: intensify vs intensity
These two trip readers on the page rather than in the ear: intensify is /ɪnˈtɛnsɪfaɪ/ while intensity is /ɪnˈtɛnsɪti/. Spoken aloud the problem disappears. In writing it persists, because they differ by a single letter - f in “intensify” becomes t in “intensity”, and the parts of speech differ too (verb vs noun), which is usually the fastest check. Our composite confusion score for this pair is 29268, derived from the frequency rank of both members and their visual similarity.
intensify is recorded at frequency rank #23,571, classified as averb, pronounced /ɪnˈtɛnsɪfaɪ/. intensity is at rank #5,697, tagged as anoun, pronounced /ɪnˈtɛnsɪti/.
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 29268, this pair ranks #364,385 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of intensify vs intensity
Shared letters: einsty. Private to "intensify": f. Private to "intensity": -.
"intensify" · 9 letters · shape VCCVCCVCV · "intensity" · 9 letters · shape VCCVCCVCV
Known mistypes of this pair
Frequently Asked Questions
Do "intensify" and "intensity" mean the same thing in a sentence?
In ordinary English text, does "intensify" or "intensity" show up more?
After this comparison
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "intensify" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "intensity" - compare definitions side by side with the headword page. Word entry
- This pair ranks #364,385 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "intensify" and "intensity" also get mixed up with nearby pairs, the highest-scored neighbour is "intensity vs intercity". 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 #364,385 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.