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nounskillfulness in avoiding wasted time and effortOpposite:type of:
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nounthe ratio of the output to the input of any systemtype of:
Words sounding like good efficiency
efficiency deficiency proficiency inefficiency insufficiency sufficiency immunodeficiency valvular insufficiency coronary insufficiency pulmonary insufficiency mental deficiency flywheel efficiency self-sufficiency transmission efficiency cardiac insufficiency protein deficiency hull efficiency tricuspid insufficiency ample sufficiency scant sufficiency bare sufficiency