Entry 3 senses · 3 variants Webster, 1913 Silt /(sĭlt)/ · IPA /sɪlt/ n. v. t. v. i. 01 n. Mud or fine earth deposited from running or standing water. 1. Mud or fine earth deposited from running or standing water. 02 v. t. To choke, fill, or obstruct with silt or mud. imp. & p. p. Silted; p. pr. & vb. n. Silting 1. To choke, fill, or obstruct with silt or mud. 03 v. i. To flow through crevices; to percolate. 1. To flow through crevices; to percolate.