A common binding knot in which the terminal and standing parts are parallel to each other.

A particular very simple knot, used e.g. to prevent the end of a rope from unraveling, and as part of other knots.

(nautical) A knot placed in a rope either to prevent the end from fraying, or to prevent it from passing through a hole.

An overhand knot.

A team-building exercise in which a group of people form a circle and hold hands with others in the circle, and then disentangle themselves.

(topology) A knot that has a knot diagram in which, in traveling along the knot, one passes through intersections alternatingly: over, under, over, under, etc.

(topology) A representation in the plane of a knot, with no triple points.

Calidris canutus, a species of wading bird.

The tormentil.

A knot similar to the reef knot but crossed the opposite way.