Synonyms of 'silt'
sedimentDictionary, deposit, residue
The lake was almost solid with silt and vegetation.
phrasal verbsilt something up
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A powdery deposit had settled at the bottom of the glass.
He thrust his hand into the ooze and brought out a large toad.
Thesaurus for silt from the Collins English Thesaurus
Silt is fine sand , soil , or mud which is carried along by a river.