Leader
Leader , noun
1.
(Music) One who, or that which, leads or conducts; a guide; a conductor.
(a)
(Music) One who goes first.
(b)
(Music) One having authority to direct; a chief; a commander.
(c)
(Music) A performer who leads a band or choir in music; also, in an orchestra, the principal violinist; the one who plays at the head of the first violins.
(d)
(Music) A block of hard wood pierced with suitable holes for leading ropes in their proper places.
(e)
(Music) The principal wheel in any kind of machinery.
(f)
(Music) A horse placed in advance of others; one of the forward pair of horses. [Obsolete or Rare] — G. Francis
He forgot to pull in his leaders, and they gallop away with him at times.
(g)
(Fishing) A pipe for conducting rain water from a roof to a cistern or to the ground; a conductor.
(h)
(Fishing) 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.
(i)
(Fishing) A branch or small vein, not important in itself, but indicating the proximity of a better one.
2.
The first, or the principal, editorial article in a newspaper; a leading or main editorial article.
3.
(a) (Printing) A type having a dot or short row of dots upon its face.
(b)
(Printing) 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.