What does 予備 mean?
予備 is a Japanese noun meaning “preparation, spare” in English. It is written as 予備 in kanji, よび in hiragana, and yobi in romaji. This word is part of JLPT N2 vocabulary.
Example sentence
２階に予備の部屋が二部屋ありますが、そのどちらもここ数年使用されていません。
We have two spare rooms upstairs, neither of which has been used for years.