relative

relative, relation

这两个名词均有“亲戚、亲属”之意。
relative: 普通用词，常可与relation换用，有时指一般的亲戚。
relation: 一般指因血统或婚烟关系形成的亲戚。

名词 relative:

1. a person related by blood or marriage
   同义词：relation
2. an animal or plant that bears a relationship to another (as related by common descent or by membership in the same genus)
   同义词：congener, congenator, congeneric

形容词 relative:

1. not absolute or complete
2. properly related in size or degree or other measurable characteristics; usually followed by `to'
   同义词：proportional

1. He showed such concern that people took him to be a relative.
   他很关心别人，因而大家都把他当作亲人。
2. The relative items in this report will be submitted to the committee for discussion.
   把这份报告中的有关事项提交委员会讨论。
3. The detective thought the stick was relative to the murder case.
   侦探认为这根木棒和谋杀案有牵连。
4. Jim took it into his head to give up his good job and go off for a holiday with a relative.
   吉姆突然心血来潮，要放弃他的好工作，与一亲戚去度假。
5. The belief that moral laws are relative in meaning and application as opposed to fixed or universal.
   反律法主义认为道德准则在意义上和实践上都是相对的，并不是固定的和普遍适用的
6. They are now living in relative comfort.
   他们现在过着比较舒适的生活。
7. The teacher asked me some questions relative to my paper.
   老师问了我一些和我的论文有关的问题。