“old / former” in Japanese is 旧, read kyuu, furu (きゅう, ふる). It is a Grade 5 Kyōiku kanji, taught in year 5 of Japanese elementary school, and appears in words such as 旧友 (old friend).
What does 旧 mean?
旧い家に住む。
Same sound, different character — the classic trap. Compare them side by side: