Third-person singular simple present indicative form of prearrange.(verb)
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Use "prearranges" in a sentence
"The site prearranges group events and activities for its members."
"He sees things, anticipates events, and often prearranges them; smells war if the secretary of the navy is seen to run for a street-car, is intimately acquainted with"
"Meanwhile, a broker prearranges to buy the tickets from the company and sells them at a markup to fans."