proliferation

noun4

1. •
   The act of increasing, rising, or proliferating; augmentation, amplification, enlargement, escalation, aggrandizement.

   • But unlike the flow of capital, this virus seeks proliferation, not profit, and has, therefore, inadvertently, to some extent, reversed the direction of the flow. — 2020
2. •
   In particular, the spread (proliferating) of biochemical, nuclear and other weapons of mass destruction to countries not originally involved in developing them.
3. •
   The result of building up; buildup, accretion.
4. •
   The process by which an organism produces others of its kind; breeding, propagation, procreation, reproduction.