My uncle is my nearest living relative.叔叔是我最近的亲人。
She has no relatives in town.她城里没有亲戚。

relative, relation
参见relation条。

relative to
关于…的,和…比较起来having a connection with sth; referring to sth
Relative to the size, the city is sparsely populated.与其面积相比,这个城市的人口是稀少的。
These are the facts relative to the problem.这些都是与该问题有关的事实。

用作定语
▲～+n.
 He retired and lived in relative isolation.他退休后,生活比较孤寂。
Let's make a relative study of the two languages.让我们将这两种语言作一下比较研究。
用作表语
▲S+be+～
 All things are relative.一切事物都是相比较而存在的。