What is the meaning of 竜王?

a dragon king, especially in esoteric Buddhist contexts

a promoted 飛車 (hisha, flying chariot), having a move corresponding to both rook and king in Western chess

one of the eight major titles of professional shogi, conferred to the winner of a 竜王戦 (ryūō-sen, dragon king match)

a placename, especially of a town in the district of either Nakakoma in central Yamanashi prefecture or Gamō in south Shiga prefecture

Source: wiktionary.org