D defs.my
Entry 1 sense Webster, 1913

Overlord

/ōv'-ẽrl-ôrdˌ/ · O·ver·lord · IPA /ˈəʊvə(ɹ)lɔː(ɹ)d/
01 n. One who is lord over another or others; a superior lord; a master.
  1. 1.
    One who is lord over another or others; a superior lord; a master.