A ball of thread.

The thread that forms a ball; the thread that is used to guide a person in a labyrinth. Hence, any thing that guides or directs one in an intricate case.

The lower corner of a square sail, and the aftmost corner of a stay sail.

In seamanship, to truss up to the yard, by means of clew-garnets or clew-lines, in order to furling.

To direct.