if it snows, snow falls from the sky:
It snowed all night.
It started snowing around five.
to be unable to travel from a place because so much snow has fallen there:
We were snowed in for three days last winter.
to have more work than you can deal with
be snowed under with
I found myself snowed under with work.
if an area is snowed under, a lot of snow has fallen there so that people are not able to travel
4 [transitive] American English informal
to persuade someone to believe or support something, especially by lying to them
snow somebody into doing something
Millions of readers were snowed into believing it was a true story.