Efficacy vs Success

Quando usar cada um em inglês, com significado, registro e exemplos.

Efficacy

FormalAcima de 10.000 (menos comum)

Success

Top 1000 (muito comum)A1noun
Mais formal: EfficacyMais comum: Success
 EfficacySuccess
Pronúncia🇬🇧 //ˈɛfɪkəsi//🇺🇸 //ˈɛfɪkəsi//🇬🇧 /["/səkˈses/"]/🇺🇸 /["/səkˈses/"]/
SignificadoEffectiveness or how well something works.When you achieve something you wanted to do.
ExemploThe efficacy of the new vaccine was confirmed in clinical trials.His success in the competition made him very proud.
RegistroFormalNeutro
Quão comumAcima de 10.000 (menos comum)Top 1000 (muito comum)
Nível CEFR-A1
Classe gramaticalnoun
Colocaçõesclinical efficacy, evaluate efficacy, prove efficacy, demonstrate efficacy, measure efficacyenormous, great, immense, amount, degree, level, achieve, attain, enjoy, come, lie (in something), depend on something, rate, story, factor, with success, without success, success in, a chance of success, a hope of success, confident of success, resounding, roaring, rousing, be, prove, have, wish somebody (every) success
Antônimos-failure, defeat, setback
Erros comunsConfused 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 'successfully', which is an adverb., Used incorrectly as a verb instead of the noun form., Misplaced in sentences, such as 'We have success' instead of 'We are successful'.
Notas de usoUsed primarily in formal contexts like research, medicine, and discussions about policy. Less common in everyday conversation.Use 'success' when talking about achieving goals or winning in a friendly context. Avoid using it in negative situations or as a mockery.

Perguntas frequentes: Efficacy vs Success

Qual é a diferença entre Efficacy e Success?

Efficacy: Effectiveness or how well something works. Success: When you achieve something you wanted to do.

Qual é mais formal: Efficacy e Success?

Efficacy é a mais formal entre elas.

Qual é mais comum: Efficacy e Success?

Success é a mais comum no inglês do dia a dia.

Pode mostrar um exemplo de cada?

Efficacy: The efficacy of the new vaccine was confirmed in clinical trials. Success: His success in the competition made him very proud.

Posso usar Efficacy e Success de forma intercambiável?

Nem sempre. Efficacy e Success são relacionadas e às vezes se sobrepõem, mas diferem em registro, frequência e uso, então trocar uma pela outra pode mudar o sentido ou o tom. Veja as diferenças acima antes de substituir.

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