knot

From WikiWord, the free dictionary

/nɒt/ English

Definitions

A looping of a piece of string or of any other long, flexible material that cannot be untangled without passing one or both ends of the material through its loops.“Climbers must make sure that all knots are both secure and of types that will not weaken the rope.”
(of hair, etc) A tangled clump.“The nurse was brushing knots from the protesting child's hair.”
A maze-like pattern.
A non-self-intersecting closed curve in (e.g., three-dimensional) space that is an abstraction of a knot (in sense 1 above).“A knot can be defined as a non-self-intersecting broken line whose endpoints coincide: when such a knot is constrained to lie in a plane, then it is simply a polygon.”

To form into a knot; to tie with a knot or knots.“We knotted the ends of the rope to keep it from unravelling.”
To form wrinkles in the forehead, as a sign of concentration, concern, surprise, etc.“She knotted her brow in concentration while attempting to unravel the tangled strands.”
To unite closely; to knit together.
To entangle or perplex; to puzzle.

One of a variety of shore birds; the red-breasted sandpiper (variously Calidris canutus or Tringa canutus).