expression
as; with; due to; along with
Indicates that one change or event happens in parallel with another, often implying a cause-and-effect or proportional relationship. Used in formal and written contexts.
年を取るに伴って、体力が落ちてきた。
As I get older, my physical strength has declined.
経済成長に伴って、環境問題も深刻化している。
Along with economic growth, environmental problems are also becoming more serious.