IPA: /məˈnɒpəlaɪz/
KK: /məˈnɑːpəˌlaɪz/
To have complete control over something, often to the exclusion of others.
The company tried to monopolise the market by buying out its competitors.
Past: monopolised
Past Participle: monopolised
Monopolise → It is formed from "mono-" (meaning single or one) and "polein" (meaning to sell). The word describes the act of selling something exclusively or having control over a single market.
Think of having 'one' ('mono-') seller controlling the market ('polein') — that's why monopolise means to control the sale of something exclusively.