
Rainstorm
Intensity Variation
The word 'rainstorm' can imply different levels of rain, from moderate to very heavy.

The forecast predicts a mild rainstorm this afternoon.
Unexpected Event
'Rainstorm' often signifies an unexpected or sudden event that can disrupt plans.

Our picnic was ruined by a sudden rainstorm.
Weather Descriptions
Use 'rainstorm' to describe specific weather conditions that include significant rain.

The weather report mentioned a rainstorm moving in by evening.
Compare with
DelugeDownpourMonsoonTempestThunderstorm
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