The term 'humanities' is an umbrella term for the study of human culture, including literature, philosophy, history, and the ARTS. The crossword solution for the term 'humanities' is 'ARTS, ' which is a four-letter word. ARTS is a broad term that encompasses many different forms of creative expression, such as painting, music, theatre, and dance. It is also used to refer to the study of these forms of expression, which is a major component of the humanities.