Noun
buddhi (uncountable)
(Hinduism) A transpersonal faculty of mind higher than the rational mind that might be translated as ‘intuitive intelligence’ or simply ‘higher mind’. It is ‘that which knows’, ie. able to discern truth from falsehood.
These eight divisions are the elements, Earth, Water, Fire, Air, Akash, Mana, Buddhi, Ahamkara. Source: Internet