Other forms: prearranged; prearranging; prearranges
When you plan something well in advance, you prearrange it. If a reporter prearranges every interview question with a politician, the answers will probably come out sounding too polished and phony.
Whenever people agree on or organize the details of something before it happens, they prearrange it. Many things in life benefit from being prearranged: spies need to prearrange meeting places and code words, and new parents usually prearrange gear like car seats and diapers before the birth of their child. Prearrange adds the "before" prefix pre- to arrange, from the Old French a, "to," and rangier, "set in a row."