Yiddishkeit (Yiddish: ייִדישקייט — yidishkeyt in standard transcription) literally means "Jewishness", i.e. "a Jewish way of life", in the Yiddish language. It can refer to Judaism or forms of Orthodox Judaism when used by religious or Orthodox Jews. In a more general sense it has come to mean the "Jewishness" or "Jewish essence" of Ashkenazi Jews in general and the traditional Yiddish-speaking Jews of Eastern and Central Europe in particular.
From a more secular perspective it is associated with the popular culture or folk practices of Yiddish-speaking Jews, such as popular religious traditions, Eastern European Jewish food, Yiddish humour, shtetl life, and klezmer music, among other things. .