Chabad, also known as Lubavitch, Habad and Chabad-Lubavitch (Hebrew: חב"ד), is an Orthodox Jewish Hasidic dynasty. Chabad is one of the world's best-known Hasidic movements, particularly for its outreach activities. It is one of the largest Hasidic groups and Jewish religious organizations in the world. Unlike most Haredi groups, which are self-segregating, Chabad operates mainly in the wider world and caters to secularized Jews.