Definitions of amass

1. To gather in large quantity: to accumulate.

2. To heap up; accumulate.

3. get or gather together; " I am accumulating evidence for athe man's unfaithfulness to his wife"; " She is amassing a lot of data for her thesis"

4. get or gather together; " I am accumulating evidence for the man's unfaithfulness to his wife"; " She is amassing a lot of data for her thesis"; " She rolled up a small fortune"

5. To collect in large quantity or amount; to accumulate.

6. A mass; a heap.

7. Amassment.