How do you define canon?

Moody Radio openline program  on March 23, 2019: Tricia Mcmillan with the question: Can you define canon? That's kind of what we are going to talk about. What is the canon? Dr Steven Sanchez: We are not talking about weaponry here. We are talking about a word that means a measuring rod, some sort. The word's suggestion is a stick, an instrument that is used to measure things and now by extension, by metaphor, that becomes a way of describing either the books that measure up to a certain standard or the books that become the measuring standard by which we measure other things. Dr Michael Rydelnik: People use the word canon, talking about the canon of scriptures, the books that should be in the bible. The way people use it, they should understand it because I hear students talk about the canon of Star Wars ... Dr Steven Sanchez: Or the canon of Western literature .. Dr Michael Rydelnik: We are talking which are the key books people should read in western literature or we are talking about the canon of the Star Wars movies, or when we are talking books of the bible, we are saying these are those that are the Word of God. This is the inspired scripture. We are talking about the old testament canon and we are talking about the new testament canon. Which books were included in the bible, that's what we are talking when we are talking canon.