Search Result for "emperor": 
Wordnet 3.0

NOUN (4)

1. the male ruler of an empire;

2. red table grape of California;

3. large moth of temperate forests of Eurasia having heavily scaled transparent wings;
[syn: emperor, emperor moth, Saturnia pavonia]

4. large richly colored butterfly;
[syn: emperor butterfly, emperor]

The Collaborative International Dictionary of English v.0.48:

Emperor \Em"per*or\, n. [OF. empereor, empereour, F. empereur, L. imperator, fr. imperare to command; in in + parare to prepare, order. See Parade, and cf. Imperative, Empress.] 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. [1913 Webster] Emperor goose (Zo["o]l.), a large and handsome goose (Philacte canagica), found in Alaska. Emperor moth (Zo["o]l.), one of several large and beautiful bombycid moths, with transparent spots on the wings; as the American Cecropia moth (Platysamia cecropia), and the European species (Saturnia pavonia). Emperor paper. See under Paper. Purple emperor (Zo["o]l.), a large, strong British butterfly (Apatura iris). [1913 Webster]
WordNet (r) 3.0 (2006):

emperor n 1: the male ruler of an empire 2: red table grape of California 3: large moth of temperate forests of Eurasia having heavily scaled transparent wings [syn: emperor, emperor moth, Saturnia pavonia] 4: large richly colored butterfly [syn: emperor butterfly, emperor]
Moby Thesaurus II by Grady Ward, 1.0:

27 Moby Thesaurus words for "emperor": anointed king, chief, chieftain, crowned head, dynast, grand duke, high chief, imperator, king, king-emperor, kinglet, lord paramount, majesty, monarch, overlord, paramount, petty king, potentate, prince, prince consort, royal, royal personage, royalty, ruler, sovereign, suzerain, tetrarch
Bouvier's Law Dictionary, Revised 6th Ed (1856):

EMPEROR, an officer. This word is synonymous with the Latin imperator; they are both derived from the. verb imperare. Literally, it signifies he who commands. 2. Under the Roman republic, the title emperor was the generic name given to the commanders-in-chief in the armies. But even then the application of the word was restrained to the successful commander, who was declared emperor by the acclamations of the army, and was afterwards honored with the title by a decree of the senate. 3. It, is now used to designate some sovereign prince who bears this title. Ayl. Pand. tit. 23.