“good / fine” in Japanese is 良, read ryou, yo (りょう, よ). It is a Grade 4 Kyōiku kanji, taught in year 4 of Japanese elementary school, and appears in words such as 良好 (good / favorable).
What does 良 mean?
今日は天気が良い。
Same sound, different character — the classic trap. Compare them side by side: