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Related to on mind: have on mind
on one's mind
Fig. occupying one's thoughts; currently being thought about. You've been on my mind all day. Do you have something on your mind? You look so serious.
on your mind
in your thoughts, esp. because you are worried I'm sorry if I've been a bit irritable recently but I've got a lot on my mind.
on somebody's mind
if something is on someone's mind, they are thinking about it a lot or worrying about it Something's worrying you, isn't it? What's on your mind? I wanted to talk about men but Helen obviously had other things on her mind. I'm sorry if I've been a bit irritable recently but I've got a lot on my mind (= I'm worrying a lot) at the moment.