a continuous decrease in the number, value, quality, etc. of something a rapid/sharp/gradual decline urban/economic decline The company reported a small decline in its profits. An increase in cars on the roads has resulted in the decline of public transport. The town fell into (a) decline (= started to be less busy, important, etc.) after the mine closed. The steel industry in the United States has been in decline since the 1970s.
nounjump to other results
NAmE//dɪˈklaɪn//[countable, usually singular, uncountable] decline (in something) decline (of something)