The term DICT. LISTING is composed of four abbreviations: FED (3 letters), VAR (3 letters), DEF (3 letters), and SYN (3 letters). FED stands for Federal, which is a term used to describe the government of the United States. VAR stands for Variable, which is a term used to describe something that can change or vary. DEF stands for Definition, which is a statement that explains the meaning of a word or phrase. SYN stands for Synonym, which is a word or phrase that has the same or nearly the same meaning as another word or phrase. Together, these abbreviations form the term DICT. LISTING, which is a listing of words and their definitions, as well as synonyms for those words.