This is the 557th most frequent French word.
avis
Opinion or notice.
Here, 'avis' is used to indicate a personal opinion or judgment.
À mon avis, il est trop tôt pour prendre une décision.
In my opinion, it is too early to make a decision.
In this sentence, 'avis' is employed to signify one's standpoint or decision, which can be changed.
Elle a changé d'avis après avoir entendu ses arguments.
She changed her mind after hearing his arguments.
Here, 'avis' refers to professional or formal perspectives given by specialists.