How to say that it rains on something?

1. What's another way to say it's raining?
2. What does it mean to rain on something?

What's another way to say it's raining?

1. Tipping down!- This is really another way of saying it's raining heavily. 2.

What does it mean to rain on something?

To give or bestow something on someone in abundance. In this usage, a noun or pronoun is used between "rain" and "on." The boss has been raining praise on Janet all week for the work she did. People across the country are raining condemnations on the prime minster for his handling of the crisis.