What makes a word a 'word'?

Words are everywhere -- and we're grateful, because we can't do this show without them. But all words were, at some point, just made up. So how does society decide what counts as a "real" word? In today's episode, Ben, Noel and Max dive into the history of language, and the oddly specific systems dictionaries put in place to decide whether a given word or phase is legitimate.See omnystudio.com/listener for privacy information.