漢語翻譯：
n. 效力
【經】 有效性, 能行性英語解釋：
名詞 effectiveness:

power to be effective; the quality of being able to bring about an effect同義詞：effectivity, effectualness, effectuality

capacity to produce strong physiological or chemical effects同義詞：potency, strength

In data security, an attack on the security of a computer system, undertaken to test the effectiveness of the security and to highlight any areas of weakness.在數據保密學中，對一個計算機系統(tǒng)的安全性的攻擊，用以測試安全的有效性及暴露弱點。

Legal effectiveness or validity.效力法律上的效力或者有效

Lacking vigor, force, or effectiveness; inadequate.缺乏活力、力量或效力的; 不充足的

Equal in force, power, effectiveness, or significance.相等的力量、能力、效力、或重要性等相等