Meaning

noun the whole body of the Jewish sacred writings and tradition including the oral tradition

noun the first of three divisions of the Hebrew Scriptures comprising the first five books of the Hebrew Bible considered as a unit

noun (Judaism) the scroll of parchment on which the first five books of the Hebrew Scripture is written; is used in a synagogue during services

originBorrowed from Hebrew תּוֹרָה (tōrā, “instruction, law or teaching”).

Etymology from Wiktionary, CC BY-SA 3.0