Thanks a lot Nikhil! Coming to my vocabulary, almost all of it is from reading books.

Since I was young, I've read voraciously - so many normally-unknown words are part of my regular vocab.

Hollywood movies, NRI friends, US/UK YouTubers, and Reddit threads might have helped as well.

But books are the main source - https://baos.pub/of-the-400-books-ive-read-in-my-lifetime-these-are-my-top-30-picks-c5f4894d899c?sk=4d94626e233ca36960c1015a5bab14e2