v.
1.move downward and lower, but not necessarily all the way
2.go under, "The raft sank and its occupants drowned"
3.grow smaller
4.be recorded or remembered
5.be ingested
6.be defeated
7.disappear beyond the horizon
8.stop operating
Idiom of the Day
You bet your life!
most certainly, without any doubt
"You bet your life I will be attending the conference next year."