Any person who leads or directs. • One who goes first. • One having authority to direct. • One who leads a political party or group of elected party members; sometimes used in titles. • A person or organization that leads in a certain field in terms of excellence, success, etc. • A performer who leads a band, choir, or a section of an orchestra. • The first violin in a symphony orchestra; the concertmaster. • An animal that leads. • The dominant animal in a pack of animals, such as wolves or lions. • An animal placed in advance of others, especially on a team of horse, oxen, or dogs. • Either of the two front horses of a team of four in front of a carriage. • Someone or something that leads or conducts. • A fast-growing terminal shoot of a woody plant. • A pipe for conducting rain water from a roof to a cistern or to the ground. • The first, or the principal, editorial article in a newspaper; a leading or main editorial article; a lead story. • 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. • 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. • An intertitle. • A loss leader or a popular product sold at a normal price. • A type having a dot or short row of dots upon its face. • 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. • A net for leading fish into a pound, weir, etc. • A branch or small vein, not important in itself, but indicating the proximity of a better one. • A block of hard wood pierced with suitable holes for leading ropes in their proper places. • The drive wheel in any kind of machinery. • The path taken by electrons from a cloud to ground level, determining the shape of a bolt of lightning.