1) Buyup 2) Hog 3) Monopolise 1) Command 2) Control completely 3) Have or exploit a monopoly of 4) Monopolise 
• (v. t.) To acquire a monopoly of; to have or get the exclusive privilege or means of dealing in, or the exclusive possession of; to engross the whole of; as, to monopolize the coffee trade; to monopolize land.
Mo·nop'o·lize transitive verb [ imperfect & past participle Monopolized ; present participle & verbal noun Monopolizing .] [ From Monopoly .] To acquire a monopoly of; to have or get the exclusive privilege or means of dealing in,...
[v] - have and control fully and exclusively 2. [v] - have or exploit a monopoly of
monopolize 1. To have complete control of an industry or service and prevent other companies or people from participating or competing in it. 2. By extension, to demand or take all of something such as someone's time, attention, or affection.
to acquire, have, or exercise a monopoly of. · to obtain exclusive possession of; keep entirely to oneself: Children monopolize one's time.