1. a storm with thunder and lightning, usually accompanied by heavy rain and strong winds

Examples

• The thunderstorm kept us awake all night with its loud crashes.
• We had to cancel the picnic because of the approaching thunderstorm.
• Lightning from the thunderstorm illuminated the dark sky.
• The weatherman predicted severe thunderstorms for this afternoon.
• After the thunderstorm passed, the air felt much cooler.
• The children were frightened by the thunderstorm’s booming sounds.
• Heavy rain from the thunderstorm flooded the streets.