恩師 おんし teacher (to whom one owes a debt of… #10,212 Meanings noun, honorific teacher (to whom one owes a debt of gratitude); mentor; one's former teacher Its kanji 恩 オン grace, kindness, goodness, favor, mercy, blessing, benefit 師 シ · いくさ expert, teacher, master, model, exemplar, army (incl. counter), war