IPA: /nɒnˈɡroʊθ/
KK: /nɔŋɡroʊθ/
Not related to the process of growing or increasing in size, amount, or importance.
The company is facing a nongrowth period, which has led to budget cuts.
Nongrowth is formed from "non-" (meaning not) and "growth" (from Old English "growan", meaning to grow). The word "nongrowth" refers to the absence of growth or development.
Think of 'non-' meaning 'not' and 'growth' meaning 'to grow' — so nongrowth means not growing.