This is the 3088th most frequent Arabic word.
الخطر
Danger.
Here, 'الخطر' (the danger) is used as the subject of the sentence indicating the presence of something risky.
الخطر على الطريق يتطلب الحذر.
Danger on the road requires caution.
In this sentence, 'الخطر' is used to describe a concern or risk stemming from a specific source (pollution).
الخطر من التلوث يزداد يومًا بعد يوم.
The danger from pollution increases day by day.
Here, 'الخطر' refers to a peril or threat that the environment is subject to.