This is the 12181st most frequent French word.
vigilant
Watchful; alert.
Here, 'vigilant' is used as an adjective to describe a state of alertness and caution necessary when crossing the street.
Soyez vigilant lorsque vous traversez la rue.
Be vigilant when crossing the street.
In this usage, 'vigilant' serves to express the necessity for parents to maintain awareness and caution towards potential risks online.
Les parents doivent rester vigilants face aux dangers de l'Internet.
Parents must remain vigilant about the dangers of the Internet.
Here, 'vigilant' describes the dog's careful and attentive behavior in ensuring the safety of its owner.