be away home还是be away from home?home不是副词吗

be away from home

be away from home

away也是副词,+from表示离开
He hasn't been away from home before.
以前他从没有离开过家。

HOME是副词,可是不用加THE.

home不是副词,应是be away home

be away from home
词性这种东西我都混乱了，凭语感得出来的