Refers to a person who provides guidance, instruction, or coaching, often in a specific skill, art, or strategic context. The term carries a nuance of a designated or official role, such as a master instructor in traditional arts or a strategic advisor.
He serves as an instructor of the tea ceremony.
He was appointed as a shogi coach.
Formed from 指南 “guidance; instruction” and 役 “role.” 指南 originally meant pointing south and developed the figurative sense of showing someone the way.