This is the 1582nd most frequent French word.
plastique
"Plastique" in English means "plastic," referring to a synthetic material made from polymers.
Here, 'plastique' is used as a noun to indicate the material the bag is made of.
Le sac est en plastique.
The bag is made of plastic.
In this sentence, 'plastique' is again used as a noun, emphasizing the concept or general category of the material.
Il faut réduire l'utilisation du plastique.
We must reduce the use of plastic.
Here, 'plastique' is used as an adjective, derived from its artistic or malleable qualities.