To Prepare
To Get Ready For
する verb
You've seen that 準備 is preparation. This is the verb version, so it means to prepare or to get ready for something.
The reading is the same as 準備.
今日は金曜日だからお弁当を準備しなくちゃ。
Since it's Friday, I need to prepare a bento.
準備する前に先に朝ご飯食べちゃいなさい。
Finish your breakfast before getting ready.
新居を準備するのにかかる費用はいくらぐらいですか。
About how much does it cost to prepare a new home?