Yarn or thread as used to guide one's way through a maze or labyrinth; a guide, a clue.
The cords suspending a hammock.
The sheets so attached to a sail.
The lower corner(s) of a sail to which a sheet is attached for trimming the sail (adjusting its position relative to the wind); the metal loop or cringle in the corner of the sail, to which the sheet is attached. (on a triangular sail) The trailing corner relative to the wind direction.
to roll into a ball
(transitive and intransitive) to raise the lower corner(s) of (a sail)
Insight or understanding ("to have a clue [about]" or "to have clue". See have a clue, clue stick)
Information which may lead one to a certain point or conclusion.
An object or a kind of indication which may be used as evidence.
To provide with a clue.
To provide someone with information which he or she lacks (often used with "in" or "up").