英语中定语的解释：用来修饰名词或代词的成分是定语。单词作定语时，通常放在它所修饰的名词之前;但在修饰复合不定代词(如：nothing,anything,everything,something等)时，则放在这些不定代词之后。
短语和从句作定语时，也放在被修饰的名词之后。形容词、名词、代词、数词、副词、介词短语以及动词不定式、分词和定语从句等都可用作定语。
英语中定语的例句：
1、My brother likes playing basketball.我兄弟喜欢打篮球。(代词作前置定语)
2、There are few women workers in the factory.这个工厂女工很少。(形容词、名词作前置定语)
3、I have something important to tell you.我有些重要的事情要告诉你。(形容词作后置定语)
4、We have ten desks in the room.我们房间有十张书桌。(数词作前置定语)
5、The workers here come from Sichuan. 这里的工人来自四川。(副词作后置定语)
6、Yesterday the scientist made a report on modern science.这位科学家昨天给我们作了有关现代科学的报告。(介词短语作后置定语)
7、He was the best man to do the job.他是做这项工作的最佳人选。(形容词作前置定语，动词不定式作后置定语)
8、The boy playing the piano is my brother.弹钢琴的男孩是我的弟弟。(现在分词短语作后置定语)
9、The dormitory built last year is for freshmen.去年盖的宿舍时为大一新生准备的。(过去分词短语作后置定语)
10、This is the new dictionary which I bought yesterday.这就是我昨天买的新字典。(定语从句作后置定语)