To bring together so as to increase in mass or number
They were unable to accumulate enough evidence to make a well-written claim.
When a number of such characters accumulate, we further honour them by assigning a new generic name.
The couple hoped to accumulate enough money to make the down payment on a house.
As she progressed through her education, she continued to accumulate knowledge that would prepare her for a career.
In so vast an empire the governors and administrators had necessarily enjoyed an almost unrestricted power, and this had enabled them to accumulate wealth.