Silt is a 4 letter English word. It's valid Scrabble word worth 4 points. It's valid Words with friends word worth 5 points.
You can make 35 anagrams from letters in silt (ilst).
1400-50; late Middle English cylte gravel, perhaps orig. salty deposit; compare Old English unsylt unsalted, unseasoned, sylting seasoning, syltan to salt, season, Norwegian sylt salty swamp,
These methods have notable effect on silt and acid production.
The rock fragments—soil, gravel, and silt—carried by a glacier.
The quality of water eventually becomes a concern, as reservoirs drop and salt and silt become more concentrated.
Five of them were found buried in the silt under the streets of Glasgow.
The floor of the valley was silt, sand and gravel—they would find nothing there.
The tides have gradually filled their shallow harbors with silt.
Millions of tons of silt have been deposited in this great alluvial basin.
There must be no halting of its contents, and no deposit of filth or silt at any point.
The subdead were coming, walking out of the silt formed fog.
And all this silt is deposited in the flat delta below New Orleans.