This could be helpful for those learning English, and a fun reminder to those who are native speakers, or those fluent to a native-level of understanding.
What are examples of English words that, over time, have lost their original meaning and now typically mean something else. This topic was inspired by @Davey944676 from an mChat message regarding the word "bird". In the UK, the word "bird" has become just as common to refer to a woman. (In Canada/US we use the word "chick".)
Another example is the word "bad". Back in 1987, Michael Jackson released the album "Bad", which in recent years up until that point, the word was changed to mean (in street-talk) that something is so good, that it's bad. For years, the word "bad" stuck to describe things or people that were actually good, cool, or envied. It was normal to hear someone say, "That's one bad outfit" to mean that it's good. Note: "bad" still means its original definition, but we determine the context if someone is using it to mean something good.
What are some other examples of a word that meant something (and by definition, still does), but we've accepted now for it to mean something else?