RSS stands for Really Simple Syndication and if there's a feed, you can subscribe to it and read it on your f-list. RSS is an older technology that is surprisingly still useful today!
For example, you can subscribe to these other Word of the Day communities:
A Word A Day - https://wordsmith-daily.livejournal.com/
Oxford English Dictionary - https://oed-wotd.livejournal.com/
Merriam-Webster WOTD - https://webster-wotd.livejournal.com/
Urban Dictionary WOTD - https://urbanwordofthed.livejournal.com/
You can find a bunch more at https://www.livejournal.com/syn/ and if you have a paid account, I believe you can still create your own feeds.
Do you have a suggestion for new RSS feeds to follow?