The web UI is handy, but what led me to this was messing around with the "dict" command line tool. I discovered that when I was randomly doing apt-cache search

The web UI is handy, but what led me to this was messing around with the "dict" command line tool. I discovered that when I was randomly doing apt-cache search queries just to see if there was some sort of command line word lookup tool (it seems like a pretty obvious thing, in hindsight I'm not sure why I'd never looked before) and found "dict". That led me to wondering if there was a way to use wiktionary.org data with the CLI, which led to a reference to using the DICT remote protocol to connect to a DICT <-> Wiktionary Gateway (which wasn't actually working when I tried it. Bummer) and finding out that "dictionary servers" are a "thing" in the general sense. Not sure how many servers are "out there" that support this, but dict.dict.org at least seems to work, which is pretty cool.