Expanding other DNS record names isn't very helpful either. I know what a Canonical Name for something is, but CNAME seems clearer, Mail Exchanger definitely isn't a helpful way to think about what MX records are for...

PTR and TXT aren't initials they're just short for "pointer" and "text" neither of which is much help divining what they're actually used for, and presumably AAAA doesn't actually stand for anything at all (?) other than it's four times bigger than the A record.