[scienceman]

Fun fact: 青い (ah-oi) means both green and blue in Japanese. There is a more specific word for green 緑 (midori) but 青い is still commonly used to mean green. For instance, "green light" (as in a stop light) is 青信号 (ah-oh shingou) where 信号 means signal.

[lovemenot]

This (lack of) B-G distinction also occurs in many languages other than Japanese.

https://en.m.wikipedia.org/wiki/Blue%E2%80%93green_distincti...