equilibrium (n)

The sudden drop in prices upset the equilibrium of the economy.
In a stable economic equilibrium, the supply and demand for goods and services are balanced.
The body maintains physiological equilibrium through complex regulatory processes to ensure internal stability.
A tightrope walker strives to find equilibrium to stay balanced while walking on the thin rope.
The ecosystem reached a state of equilibrium where the populations of different species were in harmony with their environment.