The term 'Four Freedoms Subject' refers to the four freedoms outlined by President Franklin D. Roosevelt in his 1941 State of the Union address. These freedoms are freedom of speech, freedom of worship, freedom from want, and freedom from FEAR. The crossword solution for the term 'Four Freedoms Subject' is FEAR, which is a four-letter word. FEAR is one of the four freedoms that Roosevelt outlined in his speech, and it is the freedom from FEAR of want, FEAR of oppression, and FEAR of violence.