What context can I use each word in?
Learn when and how to use these words with these examples!
efficace
Example
Le médicament est très efficace pour traiter la douleur. [efficace: adjective]
Example
Il est très efficace dans son travail et produit toujours des résultats de qualité. [efficace: adjective]
efficient
Example
Cette entreprise utilise des méthodes de production très efficaces pour maximiser les profits. [efficient: adjective]
Example
Elle est très efficiente dans son travail et peut accomplir beaucoup de tâches en peu de temps. [efficient: adjective]
Good things to know
Which word is more common?
Efficient is more commonly used in English than efficace in French. Efficient is a versatile word that can be used in various contexts, while efficace is less common and more specific to describing the effectiveness of a solution or method.
What’s the difference in the tone of formality between efficace and efficient?
Both efficace and efficient can be used in formal and informal contexts. However, efficient is more commonly used in technical or professional settings, while efficace is more commonly used in everyday language.
