Usages of plein
La poubelle est pleine, on devrait la sortir tout de suite.
The trash can is full; we should take it out right away.
Le sac est plein.
The bag is full.
À la maison, la boîte aux lettres est pleine; mon oncle l’ouvre avec sa clé.
At home, the mailbox is full; my uncle opens it with his key.
Elon.io is an online learning platform
We have an entire course teaching French grammar and vocabulary.