To keep step with others; to march or move in unison (matching pace or stride).
マーチングバンドは足並みを揃えて行進した。
The marching band marched in step.
子どもたちは先生の合図で足並みを揃えた。
The children matched their steps at the teacher's signal.
みんなで足並みを揃えれば、仕事が早く片付く。
If everyone keeps the same pace, the work will be finished quickly.
To align with others' thoughts or actions; to get on the same page (figurative, often used for teams or groups).
チーム全員の足並みを揃える必要がある。
We need to get the whole team on the same page.
上司と足並みを揃えてプロジェクトを進めたい。
I want to proceed with the project in line with my boss.
関係部署と足並みを揃えなければ、計画はうまく進まない。
If we don't align with the related departments, the plan won't proceed smoothly.