This is the 4480th most frequent Japanese word.
妨げ
Obstacle; hindrance; interference.
In this sentence, '妨げ' is used to describe an obstacle or hindrance affecting a process or activity, specifically commuting due to traffic accidents.
交通事故が通勤の妨げになりました。
Traffic accidents caused hindrance to commuting.
Here, '妨げ' refers to an act of obstruction or interference, illustrating someone's intentional actions against a plan.
彼女は私たちの計画を妨げようとしました。
She tried to obstruct our plans.
This sentence uses '妨げ' to indicate the effect of noise in obstructing or reducing the ability to concentrate.