Any dictionary worth its salt (and where did that come from?) needs to keep growing.
The Washington and Lee University Library subscribes to the online sites of the two preeminent dictionaries of the English language and both of them recently revealed extensive additions to their empires of words.
Merriam-Webster Unabridged, the contemporary heir to Noah Webster’s American Dictionary of the English Language, is our most comprehensive guide to terminology in the modern English-language , at least, that of the American variety. This database recently was enhanced by the addition of about 850 words and definitions, including glamping, dumpster fire, and mansplain.
This site also keeps tabs on the entries most often consulted in its collection; it should not be surprising that pi was heavily viewed around 3/14/18 and that Ides trended the next day.
The world’s preeminent etymological dictionary, the Oxford English Dictionary, is focused on documenting the history of English-language words, so their “new” words probably are not likely newly-born in 2017-18. Still, the OED‘s research into where words came from and how they have changed in meaning and/or spelling continues, with their latest list of new/old words and definitions including ransomware, footsie, and the intriguing diaper cake.
Certainly, both resources are worth their salt.