heder

noun, plural ha·da·rim [khuh–dah–rim] /xəˈdɑ rɪm/, English he·ders. Yiddish.

1. (especially in Europe) a private Jewish elementary school for teaching children Hebrew, Bible, and the fundamentals of Judaism.
2. (in the U.S.) Talmud Torah(def 2).

noun plural hadarim (xadaˈriːm)

1. a variant spelling of cheder