Effectiveness
/ɪˈfɛktɪvnəs/
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Definition
(noun) The property of being effective, of achieving results.
Sentence Examples
The creatures were struck dead, one after the other, with amazing precision and effectiveness.
Many fear that cuts in the defense budget will undermine the military's effectiveness.
CEFR Practice Quiz
The creatures were struck dead, one after the other, with amazing precision and ____.