noun

1. A roughly spherical mass or body.

2. A ball of thread or yarn.

3. Yarn or thread as used to guide one's way through a maze or labyrinth; a guide, a clue.

verb

1. To roll into a ball

2. (transitive and intransitive) to raise the lower corner(s) of (a sail)

noun

1. A strand of yarn etc. as used to guide one through a labyrinth; something which points the way, a guide.

2. Information which may lead one to a certain point or conclusion.

3. An object or a kind of indication which may be used as evidence.

Synonyms: hint, indication, suggestion, signature, idea