Definition of effectiveness in English:

effectiveness

Syllabification: ef·fec·tive·ness
Pronunciation: /iˈfektivnis
 
 
/

noun

  • The degree to which something is successful in producing a desired result; success: the effectiveness of the treatment
    More example sentences
    • Such constraints restrict the effectiveness of all humanitarian interventions.
    • Assessments of effectiveness would be done during the period and at the end of the phase.
    • They have been put in place over centuries to protect the effectiveness of the fighting force.
    Synonyms
    success, productiveness, potency, power; benefit, advantage, value, virtue, usefulness
    formal efficacy

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Word of the day skosh
Pronunciation: skəʊʃ
noun
a small amount; a little