Council of Trent (1545-1563) in Part III on the function of the saints in heaven. In the 25th session, the Council of Trent saints are identified as those "who reign together with Christ" and "who enjoy eternal happiness in heaven," in other words, as only certain Christians in heaven.
Vatican II (1959-1965), the most recent of Roman Catholic ecumenical councils? Lumen Gentium begins with promise with its repeated emphasis of Christians as the holy "people of God." Indeed, the Council declares that, "The Church, whose mystery is being set forth by this Sacred Synod, is believed to be indefectibly holy" (Lumen Gentium, 5.59).
If your question then is what does the BIBLE mean by saint the biblical stance is briefly that all true Christians who die are resurrected as 'saints.'
That is the biblical view, so the question then arises why are some called 'saints'?
Well first of all, there are approximatively 10,000 so-called saints so does that mean out of all of the persons who have lived & died (now in the billions) there are only 10,000 saints?
What about the thousands of unnamed faithful Christians eaten alive in ancient Rome are they not saints? Of course they are saints.
So then why are some canonized as saints? The reason simply is that there are many, many, many saints but only some are DECLARED as saints.
This process of declaration that is to say canonization can be a long process. If we take the example of say saint Peter his declaration of being a saint was obvious.
The church has declared some persons as saints but actually there are countless others who are saints.
Here is an interesting passage of scripture worth considering.
Matthew 20: 20*Then the mother of the sons of Zeb′e·dee approached him with her sons, doing obeisance and asking for something from him. 21*He said to her: “What do you want?” She said to him: “Give the word that these my two sons may sit down, one at your right hand and one at your left, in your kingdom.” 22*Jesus said in answer: “YOU men do not know what YOU are asking for. Can YOU drink the cup that I am about to drink?” They said to him: “We can.” 23*He said to them: “YOU will indeed drink my cup, but this sitting down at my right hand and at my left is not mine to give, but it belongs to those for whom it has been prepared by my Father.”
The final declaration as to who are saints belongs to God.
your bro. Vic
P.S. Why can it be said that Saint Paul was the only living saint before he died? ( a bit of a trick question).