It is unsure how many meanings the term Folk can cover, but some would be;-
Traditional music: The original meaning of the term “folk music” was synonymous with the term “Traditional music”,
Another would be World Music and Roots
Folk can also be used in description of a particular breed of popular music which has its roots in traditional music. Folk has also combined forces with Rock, Indie and Progressive Rock, as well as the Neofolk scene.
The common understanding of Folk is found In American culture, through such artists as; Woody Guthrie, Pete Seeger, Bob Dylan, Leonard Cohen and Joan Baez, who, in many ways, started a revolution through the lyrical content and this can be traced back to the 1950s and 1960s.