Synonyms for king

noun

1. A male sovereign

   monarch, ruler, majesty, despot, tyrant, potentate, prince, crowned head, emperor, autocrat, czar, tsar, caesar, kaiser, rex (Latin), suzerain, overlord, imperator, regal personage, liege, lord temporal, sultan, caliph, shah, pasha, Dalai Lama, mogul, rajah, maharajah, khan, mikado; see also dictator, ruler 1.

   Antonyms subject, servant, slave.

2. A man who is preeminent

   lord, chief, head, commander, boss, mogul, tycoon, magnate, master, authority, power, senior, dean, patriarch, star, luminary, leading light, high muck-a-muck*, big shot*, bigwig*, noise*, head honcho*; see also administrator, chief 1, leader 2, personage 2.

   Antonyms underling, menial, flunky.