大本 おおもと Meanings Noun, の-adjective root; origin; source; cause; basis; foundation Noun Ōmoto (religion) See also: 大本教 (おおもときょう). Kanji 大 big. Read as おお. 本 origin. Read as もと. Common phrases 大本になる Words containing 大本 大本教 (おおもときょう) Ōmoto (religious sect founded in 1892 as an offshoot of Shinto) Jinuma: Japanese Dictionary · Word lists