1. [ noun ] (politics) a nation's ruler or head of state usually by hereditary right
Synonyms: sovereign crowned_head
Related terms: ruler head_of_state king Kaiser carlovingian emperor hanoverian capetian shah merovingian czar
2. [ noun ] (zoology) large migratory American butterfly having deep orange wings with black and white markings; the larvae feed on milkweed
Synonyms: milkweed_butterfly Danaus_plexippus monarch_butterfly
Related terms: danaid Danaus
Similar spelling:   monarchy