The term 'Bossa Nova Relative' refers to the Brazilian musical genre SAMBA, which is a five-letter word. SAMBA is a style of music and dance that originated in Brazil in the late 19th century. It is characterized by its syncopated rhythms and its African influences. SAMBA is closely related to Bossa Nova, another Brazilian musical genre that emerged in the 1950s. Both genres are popular in Brazil and around the world.