Efficacy vs Utility

Quand utiliser chacun en anglais, avec le sens, le registre et des exemples.

Efficacy

FormelAu-delà de 10 000 (moins courant)

Utility

Top 2000 (courant)C1noun
Le plus formel: EfficacyLe plus courant: Utility
 EfficacyUtility
Prononciation🇬🇧 //ˈɛfɪkəsi//🇺🇸 //ˈɛfɪkəsi//🇬🇧 /["/juːˈtɪləti/"]/🇺🇸 /["/juːˈtɪləti/"]/
SensEffectiveness or how well something works.Something that is useful or helpful.
ExempleThe efficacy of the new vaccine was confirmed in clinical trials.a privatized electricity utility
RegistreFormelNeutre
FréquenceAu-delà de 10 000 (moins courant)Top 2000 (courant)
Niveau CEFR-C1
Nature grammaticalenoun
Collocationsclinical efficacy, evaluate efficacy, prove efficacy, demonstrate efficacy, measure efficacymunicipal, public, state-owned, company, bill, commission, great, high, limited, have, maximize, enhance, of… utility
Antonymes-uselessness, ineffectiveness, inutility
Erreurs fréquentesConfused with 'efficiency', which refers to doing things quickly and without waste., Often used without proper context; needs to specify what is being evaluated., Mispronounced, especially by non-native speakers.Confused with 'utilize' — remember 'utility' is the noun form., Using it interchangeably with 'function' — 'utility' refers to usefulness, not just the role of something., Incorrectly pluralizing it as 'utilities' when referring to a general concept.
Notes d'usageUsed primarily in formal contexts like research, medicine, and discussions about policy. Less common in everyday conversation.Use 'utility' in technical or everyday contexts. It's common in discussions about services, tools, or resources. Avoid using it in casual or overly emotional topics.

Questions fréquentes : Efficacy vs Utility

Quelle est la différence entre Efficacy et Utility ?

Efficacy: Effectiveness or how well something works. Utility: Something that is useful or helpful.

Lequel est le plus formel : Efficacy et Utility ?

Efficacy est le plus formel de tous.

Lequel est le plus courant : Efficacy et Utility ?

Utility est le plus courant dans l'anglais de tous les jours.

Peux-tu montrer un exemple de chacun ?

Efficacy: The efficacy of the new vaccine was confirmed in clinical trials. Utility: a privatized electricity utility

Puis-je utiliser Efficacy et Utility de façon interchangeable ?

Pas toujours. Efficacy et Utility sont proches et se recoupent parfois, mais elles diffèrent par le registre, la fréquence et l'usage, donc remplacer l'une par l'autre peut changer le sens ou le ton. Regarde les différences ci-dessus avant de substituer.

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