CHEDER Meaning of CHEDER in English [ 'xɛdə ](also heder ) ■ noun ( plural chedarim -'dα:rɪm , ~s ) a school for Jewish children in which Hebrew and religious knowledge are taught.OriginC19: from Heb. ḥeḏer 'room'. Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004