A wide triangular knot of a particular sort in a necktie.

A knot used to securely tie two pieces of rope together, or to reef sails.

A knot derived from the reef knot, commonly used by surgeons.

A slip knot.

plural of running knot

(topology) A pretzel link which is a knot.

plural of pretzel knot

A way of knotting up a woman's hair in imitation of the ancient Greek style.

A Grecian knot.

The range of parameter values between two successive knots in a spline.