What does 旧 mean?
旧 is a Japanese prefix meaning “ex-” in English. It can also be translated as “the old, old times, Japan's old (lunisolar) calendar” depending on context. It is written as 旧 in kanji, きゅう in hiragana, and kyuu in romaji. This word is part of JLPT N3 vocabulary.
Example sentence
官僚は旧法規の改正に関して、成り行きを見守っています。
Bureaucrats are testing the waters over revising old regulations.