monarch

noun6

1. •
   The ruler of an absolute monarchy or the head of state of a constitutional monarchy.

   • Never was monarch better fear'd and lov'd / Than is your Majesty. — 1599
2. •
   A monarch butterfly (Danaus plexippus) and others of genus Danaus, found primarily in North America.

   • But I know the monarchs are close by, their orange-and-black wings folded, dusted, and baked by heat, ready to flee south. — 2019
3. •
   A stag which has sixteen or more points or tines on its antlers.
4. •
   The chief or best thing of its kind.
5. •
   Any bird of the family Monarchidae.
6. •
   A police officer.

   • ‘Skippy gets off. An ya know the first thing e says to them monarch? E turns round on em an yelps, “An now ya can just gimme back that bottle.”’ — 1961