Efficacy

"Efficacy" in German

Wirkfähigkeit

(ability to produce effect)

Wirksamkeit

(ability to produce effect)

Wirkungsfähigkeit

(ability to produce effect)

Wirkungsgrad

(degree of ability to produce a desired effect)

Wirkungsvermögen

(ability to produce effect)

Wirkvermögen

(ability to produce effect)

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.