What is it called when there is a decline or expected decline in stock prices across the entire stock market?

A decline or expected decline in stock prices across the entire Stock Market is referred to as a "bear market." This term typically describes a market condition where prices fall by 20% or more from recent highs, often accompanied by widespread pessimism and negative investor sentiment. Bear markets can occur due to various factors, including economic downturns, rising interest rates, or geopolitical events.