améliorée

In a sentence

• La qualité de l'air a été améliorée grâce aux filtres installés.

  The air quality has been improved thanks to the installed filters.

  In this sentence, 'améliorée' is used as a past participle in the passive voice, indicating that the air quality ('la qualité de l'air') was improved as a result of an action.

• Nous avons adopté une méthode améliorée pour le tri des déchets.

  We have adopted an improved method for waste sorting.

  Here, 'améliorée' describes a noun ('méthode') and is used as an adjective indicating that the described method is better than a previous one through improvement.

• Avec ces outils, la productivité peut être considérablement améliorée.

  With these tools, productivity can be significantly improved.

  In this usage, 'améliorée' is part of a passive voice construction ('peut être... améliorée'), showing that productivity could be enhanced through appropriate means.