Seeing black cat in the dream can have several different interpretations. Historically black cats seen in a dream have been considered to be nefarious omens. More modern interpretations are more varying.
According to one interpretation simply seeing black cat in the dream can mean that you will feel quite unlucky in real life. You might feel as everything that could, have indeed went wrong and that you are indeed victim of destiny.
If you see a black cat that crosses your path in the dream it means that you should not undertake any business trips in the upcoming months as the deals that you will make during these trips are unlikely to be successful no matter how hard you try for them to be successful.
Feeding a black cat in your dream signifies that your goodness and honesty will be returned in kind by people you have had helped in the past. This dream can also mean that an old, estranged friend of yours will be reproaching you.
Petting a black cat in your dream can mean that you need to be careful of intrusions in your personal life by other people. Indeed someone might be a bit too interested in your personal life and the happenings in it.
To be scratched or bitten by a black cat in your dream means that a friend of yours will turn against you when you least expect them to do so. This dream in general can also point to a loss of trust into someone that is very close to you.
To see a group of black cats in your dream means that you will be able to find a group of friends which will become powerful allies of yours but their honesty might be suspect. This is especially true if you have this dream several times or if you have it during the early morning hours of the night.