Leader

Part of speech: noun (n.)

1. One who, or that which, leads or conducts; a guide; a conductor. Especially:

2. One who goes first.

3. One having authority to direct; a chief; a commander.

4. A horse placed in advance of others; one of the forward pair of horses. He forgot to pull in his leaders, and they gallop away with him at times. Hare.

5. A pipe for conducting rain water from a roof to a cistern or to the ground; a conductor. (h) (Fishing)

6. A net for leading fish into a pound, weir, etc. ; also, a line of gut, to which the snell of a fly hook is attached.

7. The first, or the principal, editorial article in a newspaper; a leading or main editorial article.

8. A type having a dot or short row of dots upon its face. (b) pl.

9. a row of dots, periods, or hyphens, used in tables of contents, etc., to lead the eye across a space to the right word or number.

Synonyms: chief; chieftain; commander. See Chief.