monarchs

noun

1. a hereditary sovereign, as a king, queen, or emperor.
2. a sole and absolute ruler of a state or nation.
3. a person or thing that holds a dominant position: a monarch of international shipping.
4. monarch butterfly.

noun

1. a sovereign head of state, esp a king, queen, or emperor, who rules usually by hereditary right
2. a supremely powerful or pre-eminent person or thing
3. Also called: milkweed a large migratory butterfly, Danaus plexippus, that has orange-and-black wings and feeds on the milkweed plant: family Danaidae

n.mid-15c., from Middle French monarque (14c.) or directly from Late Latin monarcha, from Greek monarkhes “one who rules alone” (see monarchy). As a type of large butterfly, from 1890.