honestly kind of enjoy the (English speaking?) tendency to come up with two-letter place abbreviations, really keeps me on my toes

WA? Washington State or Western Australia
CA? California or Canada (shouts out to Ontario, CA)

Two letters abbreviation: place or location

Three letters: legally allowed to read your emails and shoot your dog

Four letters: can't say on live TV

Five letters: should be science fiction, but exists (e.g. laser, scuba)