Looking up...
The rain poured down all afternoon.
It rained heavily for several hours.
Water droplets falling from clouds to the ground due to condensation and gravity
We need an umbrella because it's going to rain.
We need protection because rain is expected.
The rainforest receives heavy rainfall every year.
Tropical rainforests get a lot of rain annually.
Can also refer to a period of rain or a specific rain event.
Rain can be both a noun ('the rain') and a verb ('it rains').
Rain is a common weather phenomenon, often discussed in forecasts.
Old English 'regn', from Proto-Germanic 'regnaz', related to 'rain' in other Germanic languages
Can be used as a verb ('it rains') or noun ('the rain'). In meteorology, 'rain' refers to liquid precipitation.