different是形容词，修饰名词。different的名词是difference，示“与……不同”，其后一般接介词from，有时也用to或th表an，但均不及用from。different表示不同的，difference表示区别。different作定语，表语等。difference作主语，宾语等。

例句：We human are different from animal。我们人类不同于动物。We have a big difference。我们有很大的差异。There are so many different makes to choose from。有很多不同的型号可供选择。

This box is different from that one。这只盒子与那只不同。There are some differences between the two boxes。这两只盒子有些不同。It's very different to what I'm used to。这与我所习惯的大不相同。

difference常用短语：all the difference天渊之别，大不相同。as near as makes no difference没有多少差别。iron out the difference消除分歧。make a great difference有很大差别，有很大不同。make a difference between区别对待。