Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun emperor

4 senses of emperor

Sense 1
emperor -- (the male ruler of an empire)
       => sovereign, crowned head, monarch -- (a nation's ruler or head of state usually by hereditary right)

Sense 2
emperor -- (red table grape of California)
       => vinifera grape -- (grape from a cultivated variety of the common grape vine of Europe)

Sense 3
emperor, emperor moth, Saturnia pavonia -- (large moth of temperate forests of Eurasia having heavily scaled transparent wings)
       => saturniid, saturniid moth -- (large brightly colored and usually tropical moth; larvae spin silken cocoons)

Sense 4
emperor butterfly, emperor -- (large richly colored butterfly)
       => nymphalid, nymphalid butterfly, brush-footed butterfly, four-footed butterfly -- (medium to large butterflies found worldwide typically having brightly colored wings and much-reduced nonfunctional forelegs carried folded on the breast)