2decline noun
plural declines 1 : the process of becoming worse in condition or quality [noncount] ▪ a period of economic decline ▪ He says that American industry is in a state of decline. ▪ There was a general feeling that the country was in decline. [=was becoming less powerful, wealthy, etc.] ▪ The town fell/went into decline after the factory closed down. [count] — usually singular ▪ He has experienced a decline in health. ▪ the decline and fall of the Roman empire ▪ The company's products suffered a decline in quality. ▪ a gradual physical/mental decline 2 : a change to a lower number or amount [count] ▪ The economy experienced a decline of two million jobs. ▪ We saw a sharp/steep decline in sales this month. ▪ Declines led advances at the end of the trading day. [noncount] ▪ There was some decline in stock prices at the end of the trading session.
on the decline
: becoming worse in condition or less in size, amount, number, etc. : declining
▪ His health is on the decline. ▪ Sales are on the decline.
▪ His health is on the decline. ▪ Sales are on the decline.
