Definition of "Knot" :
noun: a sandpiper that breeds in the Arctic and winters in the southern hemisphere
noun: any of various fastenings formed by looping and tying a rope (or cord) upon itself or to another rope or to another object
noun: soft lump or unevenness in a yarn; either an imperfection or created by design
noun: a tight cluster of people or things
"A small knot of women listened to his sermon."
noun: something twisted and tight and swollen
"Their muscles stood out in knots."
noun: a hard cross-grained round piece of wood in a board where a branch emerged
"The saw buckled when it hit a knot."
noun: (of ships and wind) a unit of speed equal to one nautical mile per hour or about 1.15 statute miles per hour
verb: tie or fasten into a knot
"Knot the shoelaces."
verb: tangle or complicate
verb: make into knots; make knots out of
"She knotted her fingers."