transitive. To accumulate (wealth or other advantageous resources) for oneself. Also intransitive.

transitive. To heap up in a mass, to pile up (literal and figurative); to amass, collect, or accrue (esp. wealth or possessions).

transitive. To hoard or heap up.

transferred. To gather and lay up in store; to ‘reap’, to husband.

To accumulate a stock of (something); spec. to build up a stock of (nuclear weapons). Also absol.