Definitions
1.nounThe ruler of an absolute monarchy or the head of state of a constitutional monarchy.
2.nounThe monarch butterfly, Danaus plexippus, and others of genus Danaus, found primarily in North America, so called because of the designs on its wings.
3.noun(Aboriginal English) A police officer.
4.noun(often capitalised) A stag which has sixteen or more points or tines on its antlers.
5.nounThe chief or best thing of its kind.