What are some words that have had a traditional meaning but have been redefined by more recent culture?

What are some words that have had a traditional meaning but have been redefined by more recent culture? please explain in 150 words. Please be mindful not to use examples that are inappropriate for an academic setting or may be offensive to others.  Please don't not only writer 1 word writer multiple words and include what the original meaning is and how the word was redefined.  Thank you.