Definitions

1. verb

to gather or collect (something, such as wealth or knowledge) over a period of time

“She has been accumulating wealth since her business started.”

2. verb

to gather or bring together (people or things) into a particular place or position

“The tourists were accumulating at the entrance of the museum.”

3. noun

a quantity or amount of something that has been gathered or collected over a period of time

“The accum of snow on the roof was heavy enough to cause a collapse.”