Accumulation
Part of speech: noun
Definition: The act of accumulating, the state of being accumulated, or that which is accumulated; as, an accumulation of earth, of sand, of evils, of wealth, of honors. The concurrence of several titles to the same proof. The continuous growth of capital by retention of interest or savings. (investment) The action of experienced investors buying an asset from inexperienced investors when the price of the asset is low.
Accrual
Part of speech: noun
Definition: An increase; something that accumulates, especially an amount of money that periodically accumulates for a specific purposea charge incurred in one accounting period that has not been paid by the end of it.