what does it mean when you are easily offended over words people use?

What it means in YOUR case, Ravenhill, is that you have long-term problems with anger management. You KNOW that. We've been through this a dozen times.

Everything Choko says about you is true. You post on here frequently, under different names, always with barely-contained anger about other people doing or saying things that most of us would find, at worst, mildly irritating.

Please go back to your mental health adviser whenever Covid permits. Meanwhile if someone annoys you, make the deliberate choice to look away.

Only a fool takes offense where no offense is intended. Why are you so eager to feel yourself wronged? 

It means you are a candidate for anger management already.

it means you need to learn to calm down

Your sensitivity to this kind of thing is rooted in your own feelings of inadequacy and low self-worth, as well as the anxiety that you've known for over a decade is a problem for you. As for how you can deal with it, what does your therapist say? Has your therapist NOT given you tools to deal with your anxiety, depression and other issues? I'm not making assumptions, I'm basing my appraisal on over 8 years of seeing you post things here and reading what you write about yourself. And taking offense easily is DUE to a low self-opinion. You can ask any psychologist about that if you want, but it should be self-evident.