* Language is constantly evolving: New words are coined, borrowed from other languages, and adapted all the time. This happens organically, so there isn't a central authority keeping track of every single new addition.
* No official "word registry": Unlike some languages, English doesn't have a single, official body that formally approves new words.
* New words can be obscure: Many new words might be very specialized terms used in specific fields or subcultures. They may never become widespread or appear in dictionaries.
However, we can find examples of recently added words!
* "Yeet" is a good example of a slang word that gained widespread popularity in recent years.
* "Woke" is another relatively recent addition to the lexicon, describing awareness of social and political issues, especially racial injustice.
Ultimately, the English language is a dynamic system, and new words are constantly emerging and evolving. It's more about the ongoing process of language change than about identifying a specific "last word".