* Νους (Nous): This is probably the closest single word and refers to the intellect, reason, or understanding. Pronounced roughly as "noos" (with a short "oo" sound like in "book"). This is the word most often used in philosophical contexts.
* Διάνοια (Diánoia): This translates to "intellect" or "understanding," but often implies a more active, thinking process than *nous*. Pronounced roughly as "thee-AH-noy-ah."
* Σκέψη (Sκέpsi): This means "thought" or "thinking." It's more about the process of thinking than the faculty itself. Pronounced roughly as "SKEP-see."
* Μυαλό (Myaló): This is a more colloquial word, meaning "mind" or "brain." It's less philosophical and more everyday language. Pronounced roughly as "mee-ah-LOH."
The best choice depends on the context. For a philosophical discussion, *nous* is often preferred. For general conversation, *myaló* might be more appropriate.