Entry 3 senses · 3 variants Webster, 1913 Slew /slo͞o/ · IPA /sl(j)uː/ imp. v. t. n. 01 imp. imp. of Slay. 1. imp. of Slay. See: Slay 02 v. t. See Slue. 1. See Slue. See: Slue 03 n. A wet place; a river inlet. 1. A wet place; a river inlet. “The praire round about is wet, at times almost marshy, especially at the borders of the great reedy slews.” — T. Roosevelt.