ghojmoHwI' is the Klingon term for a teacher or mentor.
Ensign T'Mor attempted to become a ghojmoHwI' instructor of the mok'barain 2371, but failed to do so, in part due to her exposure to the Chova. (TNG - Perchance to Dream comic: )
Doctor B'Oraq called Beverly Crusher ghojmoHwI' because of her support when B'Oraq attended Starfleet Medical. (TNG novel: Diplomatic Implausibility)