The phrase כ"ק אדמו"ר הרבי (K'vod Kedushat Admor HaRebbe) refers to "His Holiness, the Rebbe." This title is used to address or refer to the Lubavitcher Rebbe, with deep respect and reverence. The term "HaRebbe" (The Rebbe) refers to the Lubavitcher Rebbe, and signifies his role as the spiritual leader and guide for his followers.