what is definition of knots
knot noun [C] (FASTENING). âº a âfastening made by âtying together a âpiece or âpieces of âstring, ârope, âcloth, etc.: Wrap this âstring around the âpackage and then âtie a knot. fig. Sheâs so ânervous, her âstomach is in knots (= âfeels âtight and âuncomfortable).