A fastening made by tying a piece of string, rope, or something similar. She tied a knot in the rope to secure the boat to the dock.
A unit of speed equal to one nautical mile per hour, used especially in maritime and air navigation. The ship was traveling at a speed of 20 knots.
A group or cluster of people or things. A knot of people gathered around the street performer.
A hard, cross-grained mass of wood in a tree trunk or branch. The carpenter had to work around the knot in the wood to create a smooth surface.
A feeling of tightness or tension in a part of the body, often due to stress or anxiety. She felt a knot in her stomach as she waited for the exam results.
A tangled mass of hair, thread, or similar filaments. She patiently worked the knot out of the necklace chain.
(Mathematics) A closed, non-self-intersecting curve in three-dimensional space. The trefoil is the simplest non-trivial knot studied in topology.
A shorebird (Calidris canutus) of the sandpiper family, also called a red knot. A flock of knots fed on the exposed mudflat at low tide.