- A fastening made by looping a piece of string, rope, or something similar on itself and tightening it.
- A unit of speed used in navigation equal to one nautical mile per hour (1.852 km/h).
- A hard, knobbly protuberance on a tree trunk or branch.
Old english cnotta, of germanic origin; related to dutch knoop and german knoten.
- He tied a knot in the rope.
- The boat was traveling at 10 knots.
- The knot in the wood.
- The knot in the rope was difficult to untie.
- The knot in the tie.