effectiveness是一个名词。
一、翻译
effectiveness意思是有效性、效果、成效。
二、词根
effectiveness一词的词根是effect。
三、同义词
1、Efficiency：Staying abreast of technology standards is often associated with organizational efficiency.（与技术标准保持一致常常有助于提高组织的效率。）
四、反义词
Ineffectiveness：
The interpretation of the law and ineffectiveness of the revised law are continually mentioned by bloggers.（部落客持续讨论法律的诠释与新修广播法的无效。）
四、相关词组
1、improve effectiveness.（提高效率、提升效能。）
2、enhance effectiveness.（增强有效性、提升成效。）
3、increase effectiveness.（增加有效性、提高效果。）
4、measure effectiveness.（评估有效性、衡量成效。）
5、test effectiveness.（测试有效性、检验成效。）
effectiveness例句：
1、The effectiveness of the new treatment for cancer is still being evaluated.（这种新的癌症治疗方法的有效性仍在评估中。）
2、The company's training program has been praised for its effectiveness in improving employee productivity.（该公司的培训计划因其提高员工生产力的有效性而受到赞扬。）
3、The effectiveness of the marketing campaign will depend on how well it reaches the target audience.（市场营销活动的有效性将取决于它在多大程度上能够触及目标受众。）
4、The company's IT department is constantly looking for ways to improve the effectiveness and efficiency of its systems.（该公司的信息技术部门不断寻找提高系统效益和效率的方法。）
5、The study found that the effectiveness of the medication varied depending on the patient's age and medical history.（研究发现，药物的有效性因患者的年龄和病史而异。）