You can have a discharge of information, such as someone that is just telling you some kind of information. You can also discharge a weapon which means to shoot it. Finally you can also be discharged from work which essentially means to be fired from your position and each of these definitions is completely unique.
If you have a dream in which you see some kind of discharge then this means that you are worried about being fired. Being discharged is just another word for being forced out of your position and into a new one. You do not want to get fired but now you are afraid that you will because of a change in your behavior or a change in office politics. Now you are worried that your job is on the line and you are not sure what to do about it. Try to stay calm and maybe you’ll get where you need to go and into a position where you won’t have to worry as much.
If you have a dream in which you are discharged from your work or from your position then this usually arises as a symptom of anxiety that you are feeling over not being in true control of your working environment. You are feeling a crippling lack of control over your own situation and it is causing you to feel powerless. Seize back some semblance of relevance to your own position before it is too late. Otherwise you will only end up hurting yourself and digging your own hole deeper.