decline

DECLINE noun

[ C,U ] uk/dɪˈklaɪn/ us
B2 a situation in which something becomes less in amount, importance, quality, or strength

понижение, падение
a steady decline in sales/standards
decline verb uk/dɪˈklaɪn/ us decline verb
(BECOME LESS)

B2 to become less in amount, importance, quality, or strength

идти на убыль
Sales of records have decline d steadily.