n. 领导者；引线；管道（lead的复数）

n an advantage held by a competitor in a race

n a soft heavy toxic malleable metallic element; bluish white when freshly cut but tarnishes readily to dull grey

n evidence pointing to a possible solution

n a position of leadership (especially in the phrase `take the lead')

n the angle between the direction a gun is aimed and the position of a moving target (correcting for the flight time of the missile)

n the introductory section of a story

n (sports) the score by which a team or individual is winning

n an actor who plays a principal role

n (baseball) the position taken by a base runner preparing to advance to the next base

n an indication of potential opportunity

n a news story of major importance

n the timing of ignition relative to the position of the piston in an internal-combustion engine

n restraint consisting of a rope (or light chain) used to restrain an animal

n thin strip of metal used to separate lines of type in printing

n mixture of graphite with clay in different degrees of hardness; the marking substance in a pencil

n a jumper that consists of a short piece of wire

n the playing of a card to start a trick in bridge

v take somebody somewhere

v have as a result or residue

v tend to or result in

v travel in front of; go in advance of others

v cause to undertake a certain action

v stretch out over a distance, space, time, or scope; run or extend between two points or beyond a certain point

v be in charge of

v be ahead of others; be the first

v be conducive to

v lead, as in the performance of a composition; Barenboim conducted the Chicago symphony for years"

v lead, extend, or afford access

v move ahead (of others) in time or space

v cause something to pass or lead somewhere

v preside over