I spoke with my mom and she said that one of the biggest changes in the language was the amount of abbreviations we have for words and phrases. i think this would be considered as slang but terms like LOL and BRB and things like that weren’t as common. with more people having smartphones they started using more abbreviations to type quicker. going off of the abbreviations we also noticed that there are some words that are just being shortened for example the term rizz is short for the noun charisma meaning to charm someone. I also spoke to a professor and she said that now we recycle words to have different meanings for example the word ate is defined as the past action of eating but when used in the context of a compliment, it takes on a different meaning. these changes are just in the english language but i speak Russian also so one thing that me and my mom noted was that there was a change in the way people are being named for example when my mother was a kid, they used to put the fathers name as the middle name but now the middle name isn’t used anymore. you can tell a kid has American parents if they have a middle name in those slavic countries.