Monopolize (verb)

1. To have exclusive control over the supply or trade in a particular commodity or service.
2. To take up all the time or attention of a conversation or situation.

Origin:

From the greek word "monos" meaning "single" and "polein" meaning "to sell".

Examples:

1. The company monopolized the market for computer operating systems.
2. He monopolized the conversation, never allowing anyone else to speak.
3. The company is trying to monopolize the market by buying up smaller competitors.
4. She monopolized the attention of the group, always talking about herself.
5. The company was accused of monopolizing the industry by engaging in anti-competitive practices.