For example:
I was wondering how to explain the difference between luggage and baggage. Both words are near mirror versions. They both use the French -age meaning verb.
I did not know that this word, Baggage, meant prostitute. Now I know what they meant in “My Fair Lady” when contemplating throwing the baggage out the window. “I will not be called baggage when I paid full fair like a lady.”
We also use baggage as emotional baggage, political baggage, personal baggage.
Luggage is never used in this way.
So, if you’ve ever wondered what the difference was between these two similar words, now you know.