D defs.my
Entry 1 sense Webster, 1913

Oligarch

/ōl'-ĭg-ärkˌ/ · Ol·i·garch · IPA /ˈɑləɡɑɹk/
01 n. A member of an oligarchy; one of the rulers in an oligarchical government.
  1. 1.
    A member of an oligarchy; one of the rulers in an oligarchical government.