Acting or serving as a lead or leader

Heavy, soft, malleable, gray, metallic element, symbol Pb (from Latin plumbum), atomic number 82, relative atomic mass 207.19. Usually found as an ore (most often in galena), it occasionally occurs as a free metal (native metal), and is the final stable product of the decay of uranium. Lead is the softest and weakest of the commonly used metals, with a low melting point; it is a poor conductor of electricity and resists acid corrosion. As a cumulative poison, lead enters the body from lead water pipes, lead-based paints, and leaded gasoline. (In humans, exposure to lead shortly after birth is associated with impaired mental health between the ages of two and four.) The metal is an effective shield against radiation and is used in batteries, glass, ceramics, and alloys such as pewter and solder.

ETYM Old Eng. led, leed, lead, as. leád; akin to Dutch lood, Mid. High Germ. lôt, German loth plummet, sounding lead, small weight, Swed. and Dan. lod.
(Homonym: led).
1. A position of leadership (especially in the phrase 'take the lead').
2. An advantage held by a competitor in a race.
3. A news story of major importance; SYN. lead story.
4. The introductory section of a story; SYN. lead-in.
5. Evidence pointing to a possible solution; SYN. track, trail.
6. The playing of a card to start a trick in bridge.
7. (Baseball) The position taken by a base runner preparing to advance to the next base.
8. The angle between the direction a gun is aimed and the position of a moving target (correcting for the flight time of the missile).
9. (Pronounced) A soft heavy toxic malleable metallic element; bluish white when freshly cut but tarnishes readily to dull gray; SYN. Pb, atomic number 82.
10. (Pronounced) A mixture of graphite with clay in different degrees of hardness; the marking substance in a pencil; SYN. pencil lead.
11. (Pronounced) A thin strip of metal used to separate lines of type in printing; SYN. leading.

City in South Dakota (USA).

A bluish-white soft malleable ductile plastic but inelastic heavy metallic element found mostly in combination and used especially in pipes, cable sheaths, batteries, solder, and shields against radioactivity

In electronics, the metallic connector of certain components such as resistors and capacitors.
In typography, the amount of vertical space between two lines of text.

(Irregular preterit, past participle: led).
1. To be ahead of others; be at the top; be the first.
2. To travel in front of; go in advance of others; SYN. head.
3. To pass or spend.
4. To take somebody somewhere; SYN. take, direct, conduct, guide.
5. To tend to or result in.
6. To cause to undertake a certain action.