A substance that conducts electricity well. Metals are good conductors, with silver and gold being among the best. The most commonly used conductor is copper. Compare insulator, semiconductor.

ETYM Obs. or R.
A person who rules or guides or inspires others.
A row of dots, hyphens, or other such characters used to lead the eye across a printed page to related information. Leaders can be created by many word processors and other programs.

1. One who manages an office or a company.
2. One who manages; a conductor or director
3. A person who conducts business or household affairs with economy and frugality; a good economist.

ETYM Cf. Old Fren. superintendant, French surintendant. Related to Surintendant.
A caretaker for an apartment house; represents the owner as janitor and rent collector; SYN. super.

ETYM Old Eng. laddre, as. hlaeder, hlaedder; akin to OFries. hladder, Old High Germ. leitara, German leiter, and from the root of Eng. lean, v. Related to Lean, Climax.
Two parallel members connected by rungs; for climbing up or down.