knot (nòt) noun 1. a. A compact intersection of interlaced material, such as cord, ribbon, or rope. b. A fastening made by tying together lengths of material, such as rope, in a prescribed way. 2. A unifying bond, especially a marriage bond. 3. A feeling of tightness. 4. A complex problem. not

not (nòt) adverb 1.In no way; to no degree. Used to express negation, denial, refusal, or prohibition.