Which to use
“light” is a noun and “lighten” is a verb - they look or sound alike but fill different roles in a sentence.
- #467
- “light” frequency rank
- #18,357
- “lighten” frequency rank
- 18824
- confusion score
Side-by-Side Comparison
| Feature | light | lighten |
|---|---|---|
| Definition | Electromagnetic radiation in the wavelength range visible to the human eye (about 400–750 nanometers): visible light. | To make brighter or clearer; to illuminate. |
Where the spellings diverge
Shared letters are muted; the letters that actually set light and lighten apart are highlighted. They share 5 letters in sequence, which is exactly why the eye skips the difference.
Spelling & Dictionary Insight
These two trip readers on the page rather than in the ear: light is /laɪt/ while lighten is /ˈlaɪ.tn̩/. Spoken aloud the problem disappears. In writing it persists, because they differ by 2 extra letter(s) - “light” sits inside “lighten”, and the parts of speech differ too (noun vs verb), which is usually the fastest check. Our composite confusion score for this pair is 18824, derived from the frequency rank of both members and their visual similarity.
light is recorded at frequency rank #467, classified as anoun, pronounced /laɪt/. lighten is at rank #18,357, tagged as averb, pronounced /ˈlaɪ.tn̩/.
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 18824, this pair ranks #442,317 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of light vs lighten
Shared letters: ghilt. Private to "light": -. Private to "lighten": en.
"light" · 5 letters · shape CVCCC · "lighten" · 7 letters · shape CVCCCVC
Known mistypes of this pair
Frequency comparison
Frequently Asked Questions
Can "light" and "lighten" be used interchangeably?
Which is more common, "light" or "lighten"?
Remembering light vs lighten
The fastest way to pick the right one every time.
- Check the role first: if you need a noun, it's “light”; for a verb, it's “lighten”.
- See each word in full, definition, IPA, etymology and its other confusables. Full “light” entry
- Browse more pairs most likely to be confused. Most confusable