Meaning of the Word GURU

There was a passing reference to the different meanings of the Word "GURU" as per Gurmat, in the last video titled, "Naam Ki Hai & Kithe Hai, What is Naam & where it is". This video elaborates on the word "GURU" used in Gurbani, it's meanings and different contexts in which it is used. The last five minutes of the video contains the excerpts from a different lecture, further clarifying that Guru is the Bani and not the body. (Guru Bani Hai, Deh Nahi).