Definition of Blues 1. A type of folksong that originated among Black Americans at the beginning of the 20th century; has a melancholy sound from repeated use of blue notes Noun 2. A state of depression Noun Synonyms for word "blues" Semanticaly linked words with "blues" Hyponims for word "blues" has derived form blue etymology blues [Danish] etymology blueslike etymology bluesman etymology blueswoman etymology بلوز [Persian] etymology bluz etymology блуз etymology blús [Icelandic] etymologically related blues scale etymologically related delta blues is derived from baby blues is derived from blue note is derived from blues-rock