exclusive ownership or control, e.g. of a commodity or market, through legal privilege, command of supply, concerted action, etc
Like many businessmen of genius he learned that free competition was wasteful, monopoly efficient — Mario Puzo
a person or group having a monopoly
something, esp a commodity, controlled by a monopoly
exclusive possession, control, or use of something
(Monopoly) trademark a board game in which players buy, sell, rent and mortgage properties with the aim of bankrupting their opponents
[via Latin from Greek monopōlion from mono- + pōlein to sell]