That's kind of an odd question, I think. The meaning of accrue needs to be given a context for a full understanding. The general definition for it found on dictionary.com is:
verb (used without object), ac·crued, ac·cru·ing.
to happen or result as a natural growth, addition, etc.
to be added as a matter of periodic gain or advantage, as interest on money.
Law . to become a present and enforceable right or demand.
So you can see it mainly means to get something, to gather, to earn over time. When in business, it most often refers to interest.
I hope this helps.