n.
1.gradual formation of new land, by recession of the sea or deposit of sediment
2.the rising of a body of water and its overflowing onto normally dry land
3.clay or silt or gravel carried by rushing streams and deposited where the stream slows down
Idiom of the Day
let out (something) or let (something) out
to allow something to go out or escape
I let out our dog this morning and he has not come home yet.