It's too cold outside today请问outside 是什么词性?名词吗？

副词词性，今天外面很冷

outside 在这里是副词

不是，outside在本句为副词性质，作地点状语；outside具有双重属性：副词和介词，区别是作介词后面必须接帆颂亏名词态神。樱备eg.
he is playing with neighbours outside.
副词性质
he is playing with neighbors outside
the yard. 介词性质

这里outside是地点副词，不是名词。

It's too cold outside today.
意思是核蚂大运：
今天外面很冷。
outside 是副词，例如：
I stepped outside and pulled up my collar against the cold mist.
我走到外面，拉起衣领以抵改仿埋御寒雾。
Outside, the light was fading rapidly.
在外面，光在快速消失。