emperor Meaning, Definition & Usage

  1. noun the male ruler of an empire
  2. noun red table grape of California
  3. noun large moth of temperate forests of Eurasia having heavily scaled transparent wings
    Saturnia pavonia; emperor moth.
  4. noun large richly colored butterfly
    emperor butterfly.

WordNet

Em"per*or noun
Etymology
OF. empereor, empereour, F. empereur, L. imperator, fr. imperare to command; in in + parare to prepare, order. See Parade, and cf. Imperative, Empress.
Definitions
  1. The sovereign or supreme monarch of an empire; -- a title of dignity superior to that of king; as, the emperor of Germany or of Austria; the emperor or Czar of Russia.

Webster 1913