definition of
folk

[1] #1 folk n. [folks, common people] people in general (often used in the plural); "they're just country folk"; "folks around here drink moonshine"; "the common people determine the group character and preserve its customs from one generation to the next". wn

[2] #2 folk n. [tribe] a social division of (usually preliterate) people. wn

[3] #3 folk n. [family, family line, kinfolk, kinsfolk, sept, phratry] people descended from a common ancestor; "his family has lived in Massachusetts since the Mayflower". wn

[4] #4 folk n. [folk music, ethnic music] the traditional and typically anonymous music that is an expression of the life of people in a community. wn