1. • noun - a tight cluster of people or things
   • 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 - a hard cross-grained round piece of wood in a board where a branch emerged
   • noun - something twisted and tight and swollen
   • noun - a unit of length used in navigation
   • noun - soft lump or unevenness in a yarn
   • noun - a sandpiper that breeds in the Arctic and winters in the southern hemisphere
   • verb - make into knots
   • verb - tie or fasten into a knot
   • verb - tangle or complicate
2. • A compact intersection of interlaced material, such as cord, ribbon, or rope.
   • A fastening made by tying together lengths of material, such as rope, in a prescribed way.
   • A decorative bow of ribbon, fabric, or braid.
   • A unifying bond, especially a marriage bond.
   • A tight cluster of persons or things: a knot of onlookers.
   • A feeling of tightness: a knot of fear in my stomach.
   • A complex problem.
   • A hard place or lump, especially on a tree, at a point from which a stem or branch grows.
   • The round, often darker cross section of such a lump as it appears on a piece of cut lumber.
   • A protuberant growth or swelling in a tissue: a knot in a gland.
   • A division on a log line used to measure the speed of a ship.
   • Abbr.
   • A distance of one nautical mile.
   • To tie in or fasten with a knot or knots.
   • To snarl or entangle.
   • To cause to form a knot or knots.
   • To form a knot or knots.
   • In nautical usage knot is a unit of speed, not of distance, and has a built-in meaning of “per hour.
3. • v - to tie in a knot (a closed loop)

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