Lightning vs. Lightening
“Lightning” is the electrical flash seen in storms. “Lightening” is the present participle or gerund of “lighten,” used when something becomes lighter in weight, color, mood, or intensity. Their similar spelling causes frequent mix-ups.
Use “lightning” for storms and “lightening” for making something lighter: “lightning flashed” versus “lightening the load.”
Key details
Choose the right form
| Meaning / situation | Form / construction | Decision |
|---|---|---|
| storm/electrical discharge | lightning | Use the weather noun. |
| making or becoming lighter | lightening | Use the -ing form of “lighten.” |
Quick tests
Meaning / construction test
Are you referring to the electrical phenomenon in a storm?
If yes: Use “lightning.”
If no: Use “lightening” when something is becoming lighter, less heavy, less dark, or less severe.
Examples
Lightning flashed beyond the hills.
The noun names the storm phenomenon.
Lightening the load made the cart easier to move.
The -ing form comes from “lighten.”
The sky is lightening before sunrise.
Here the meaning is becoming lighter.
Further guidance
Core difference
“Lightning” is the weather word. “Lightening” is a form of “lighten,” meaning making or becoming lighter.
Fast Test
If thunder or a storm is involved, use “lightning.” If something is becoming less heavy, dark, severe, or intense, use “lightening.”
Spelling Note
The extra “e” in “lightening” reflects the verb “lighten.”
Sources and evidence
Sources are shown with the role they play in this guide. Historical or style-sensitive claims are kept within the evidence boundary described above.
- Lightning — English meaning (opens in a new tab)Cambridge University Press · Meaning of lightning as an electrical atmospheric discharge
- Lightening — English meaning (opens in a new tab)Cambridge University Press · Verb/participle senses of lighten, including making lighter