and it's so important to ask rather than assuming!
This is very important as well as if using your own definitions to make sure the person you are talking to understands what you mean.
I am part of a philosophical discussion group and we have had some very aggravated people at times when someone assumes that their definition of something is the same as what everyone else is using. We also have some people who get very upset when we spend the first half of the group time just defining a word. lol To them, it's one thing if the question for the night is, "What is evil?" and another thing if the question is "Is such and such evil?"
But what truly amazes me is the fact that people really do have different definitions for words and ideas that are so commonly used and they assume that everyone thinks the same.