"Metsudah Siddur" is a Jewish prayer book that contains the complete Jewish prayers for daily and weekly services. Some synonyms for this term include "prayerbook," "liturgy," "sidder," "siddur," or "siddurim." Each word refers to a collection of Jewish prayers that are recited at various times of the day or year. In addition to traditional Jewish prayers, a metsudah siddur may also contain commentaries, translations, and explanations to help worshippers understand the meaning of the prayers. Regardless of its name, the metsudah siddur remains an essential tool for Jewish worship and a reminder of the rich history and culture that define the Jewish faith.