If you're not asking about anything that we currently don't have a word for, we can use words as the alphabet, sure.
We then need to transmit a list of words, they're allowed to use, otherwise our count is off, because I'm sure that 974 years from now english won't be the same, as it is today. They'll have a lot more skibid rizz than we do now.
So manny happy smileys in there