Flash vs Lightning

When to use each in English, with meaning, register, and examples.

 FlashLightning
MeaningA sudden bright light or short burst of light.A bright flash of electricity in the sky during a storm.
CEFR levelB2-
Part of speechnoun
Usage notesUse 'flash' when referring to a quick and bright occurrence of light. It is informal in some contexts (e.g., a flash of inspiration) but can also be used in more formal language, like photography.Used in both formal and informal contexts. Common in weather discussions. Avoid in technical discussions about electricity.

Frequently asked questions: Flash vs Lightning

What's the difference between "Flash" and "Lightning"?

"Flash" means: A sudden bright light or short burst of light. "Lightning" means: A bright flash of electricity in the sky during a storm.

When should I use "Flash" and "Lightning"?

They can all be used in everyday English.

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