expression, noun
female crossing guard
A colloquial term for a woman who helps children cross streets safely, often wearing a green uniform or vest. The phrase is a set expression.
毎朝、緑のおばさんが交差点に立っている。
Every morning, the female crossing guard stands at the intersection.
子供たちは緑のおばさんに手を振って学校へ向かう。
The children wave to the crossing guard lady and head to school.