This is the 8992nd most frequent Japanese word.
沿う
"沿う" means "to follow," "to go along," or "to align with."
The word '沿う' here forms the term '川沿い,' indicating that the walk occurred adjacent to or following the river's edge.
川沿いを散歩しました。
I took a walk along the river.
In this sentence, '沿う' signifies adherence or conformity to a framework or guideline, specifically the plan.
計画に沿う行動をとってください。
Please take actions that align with the plan.
Here, '沿う' is used to express the idea of closely following or abiding by specific instructions or guidelines.