quide

As a noun lead is

(uncountable) a heavy, pliable, inelastic metal element, having a bright, bluish color, but easily tarnished; both malleable and ductile, though with little tenacity it is easily fusible, forms alloys with other metals, and is an ingredient of solder and type metal atomic number 82, symbol pb (from latin plumbum ) or lead can be (uncountable) the act of leading or conducting; guidance; direction, course; as, to take the lead; to be under the lead of another.

As a verb lead is

to cover, fill, or affect with lead; as, continuous firing leads the grooves of a rifle or lead can be to or lead can be .

As an adjective lead is

(not comparable) foremost.