The term 'Yin Yang counterpart' refers to the Chinese philosophical concept of Yin and Yang, which is based on the idea of two complementary forces that exist in the universe. Yin is associated with darkness, femininity, and passivity, while Yang is associated with light, masculinity, and activity. The crossword solution for the term 'Yin' is three letters long and is 'YAN'. Therefore, the Yang counterpart to Yin is YAN.