dominator[noun]Synonyms: leader, boss, chief, chieftain, cock, head, headman, hierarch, honcho, master
 [TahlilGaran] English Synonym Dictionary ▲
 dominator noun. 
['dɒmɪneɪtǝ] LME.[Orig. from Old & mod. French dominateur, later from, or assim. to, Latin dominator, formed as prec: see -OR.]1.  A person who or thing which dominates; a ruler, a lord. 
LME.2.  spec. Astrology. A planet or sign that dominates a particular person or region. 
L16-M17.  [TahlilGaran] English Dictionary ▲