ludowy — meaning in English

English meaning

folk adj Belonging to or originating from ordinary people, their traditions, and their culture, rather than experts or elites.
popular adj Liked, enjoyed, or supported by a large number of people.
vernacular noun The everyday, informal language spoken by ordinary people in a particular place, as opposed to formal or literary language.

ludowy is used for these senses in English:

folk (architecture) Of or related to local building materials and styles.
folk Believed or transmitted by the common people; not academically or ideologically correct or rigorous.
people's In certain socialist states: of, from, or controlled (at least in name) by the common people rather than a ruling elite.
popular Pertaining to or deriving from the people or general public. [from 16th c.]
vernacular Of or pertaining to everyday language, as opposed to standard, literary, liturgical, or scientific idiom.
vernacular (architecture) Of or related to local building materials and styles; not imported.

adj Belonging to or originating from ordinary people, their traditions, and their culture, rather than experts or elites.
noun A genre of traditional or traditionally-styled music, often acoustic and rooted in a particular culture.