leader

noun

1. Any person who leads or directs.
2. One who goes first.
3. One having authority to direct.
4. One who leads a political party or group of elected party members; sometimes used in titles.
5. A person or organization that leads in a certain field in terms of excellence, success, etc.
6. A performer who leads a band, choir, or a section of an orchestra.
7. The first violin in a symphony orchestra; the concertmaster.
8. The dominant animal in a pack of animals, such as wolves or lions.
9. An animal placed in advance of others, especially on a team of horse, oxen, or dogs.
10. Either of the two front horses of a team of four in front of a carriage.
11. A fast-growing terminal shoot of a woody plant.
12. A pipe for conducting rain water from a roof to a cistern or to the ground.
13. The first, or the principal, editorial article in a newspaper; a leading or main editorial article; a lead story.
14. A section of line between the main fishing line and the snell of a hook, intended to be more resistant to bites and harder for a fish to detect than the main fishing line.
15. A piece of material at the beginning or end of a reel or roll to allow the material to be threaded or fed onto something, as a reel of film onto a projector or a roll of paper onto a rotary printing press.
16. An intertitle.
17. A loss leader or a popular product sold at a normal price.
18. A type having a dot or short row of dots upon its face.
19. 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.
20. A net for leading fish into a pound, weir, etc.