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effectivity [effectivities]▼(a measure of the effectiveness of something)noun[UK: ɪfɪktˈɪvɪti] [US: ɪfɪktˈɪvɪɾi]
effectivity [effectivities]▼(the ability or power to be effective)noun[UK: ɪfɪktˈɪvɪti] [US: ɪfɪktˈɪvɪɾi]
efficiency [efficiencies]▼(extent to which time is well used)noun[UK: ɪ.ˈfɪʃn.si] [US: ə.ˈfɪ.ʃən.si]
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