1 (treated as pl.) people in general or of a specified class (few folk about; townsfolk).
2 (in pl.) (usu. folks) one's parents or relatives.
3 (treated as sing.) a people.
4 (treated as sing.) colloq. traditional music.
5 (attrib.) of popular origin; traditional (folk art).
Phrases and idioms:
folk-dance
1 a dance of popular origin.
2 the music for such a dance. folk etymology a popular modifying of the form of a word or phrase to make it seem to be derived from a more familiar word (e.g. forlorn hope). folk memory recollection of the past persisting among a people. folk-singer a singer of folk-songs. folk-song a song of popular or traditional origin or style. folk-tale a popular or traditional story. folk-ways the traditional behaviour of a people.
Etymology: OE folc f. Gmc
Useful english dictionary. 2012.