Sure we can not find it in the dictionary because it's just the latest development in technology but I mean, it will not make any difference if it gets added in the dictionary. We all have our own terms here so to speak. In addition, everyone knows how to use big, and it will only be at their fingertips if they really want to understand all the crypto terms. If there is a dictionary that adds it, great, otherwise it will not affect the bitcoin bit popularity. It may help you to understand some Cryptocurrency words / phrases.