As time goes on life changes. Use of words change also. Over 300 words have been added to dictionary. John Kelly from dictionary.com, "It's a complicated and challenging society we live in, and language changes to help us grapple with it."
Some are slang including "Y'all," "zaddy," "scrappy," and "side hustle." Others include "Long haul," and "ghost kitchen."
"Perhaps these lighter slang and pop culture newcomers to our dictionary reflect another important aspect of our time a cautious optimism and a brighter mood about the future ahead after a trying 2020." I'm digging these new dictionary words. More here.