re: http://www.billwurtz.com/questions/q.php?date=201709142348 and http://www.billwurtz.com/questions/q.php?date=201709142226 don't you think that "progression" in this case could be a helpful modifier to determine the difference between sets of chords that include the same functions but in a different order, in other words, the order of 6m-4-1-5 vs 1-6m-4-5 like in the second question? if "progression" is meaningless, it seems like "heart and soul" could sound like the same song as derulo "fight for you" or "africa", but that's clearly not the case, because derulo "fight for you" sounds like "africa" but not like "heart and soul". or there some other way you distinguish between the same chords occurring in a different order?
when you say "chords to a song" that implies that you are gonna say them in the right order. unless you are trying to confuse someone. it's like "words to a song" means the words to the song, in the right order. you don't have to say 'word progression' or whatever. you can just say 'the words', and hopefully the person will say them in the right order unless they are some kinda maniac