Main uses of ABOUT:
• relating to, regarding, on the subject of, concerning:
Did Susie tell you anything about our new perfumes? Did Susie give you any information on our new perfumes?
the report about subcontracting the report which covers the subject of subcontracting
What do you know about him? What information do you have on him?
• What about...?, How about...?:
What about going to the movies? Would it be a good idea if we went to the movies?
How about meeting next week? Could we meet next week?
• everywhere, all around a place (similar idea to around):
For the last three years, I have been travelling about. For the last three years, I have been travelling in various different places.
I moved about my apartment looking for a torch. I moved through my apartment looking for a torch.
• other meanings, when used with a verb:
How did all of this come about? How did all of this happen, occur?
This discussion will bring about some tension. This discussion will cause, create, result in some tension.