1. A significant, marked, or worthy of attention decrease or deterioration in quality, quantity, value, or condition
There has been a notable decline in student enrollment over the past five years.
Houve um declínio notável na matrícula de estudantes nos últimos cinco anos.
2. A conspicuous downward trend that is worthy of observation or remark
The company experienced a notable decline in profits after the market crash.
A empresa experimentou um declínio notável nos lucros após o colapso do mercado.