действенность

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Russian

Etymology

де́йственный (déjstvennyj) +‎ -ость (-ostʹ)

Pronunciation

  • IPA(key): [ˈdʲejstvʲɪn(ː)əsʲtʲ]

Noun

де́йственность (déjstvennostʹf inan (genitive де́йственности, nominative plural де́йственности, genitive plural де́йственностей)

  1. efficacy, efficiency

Declension