adj.
1.not solid
2.deliberately deceptive
3.as if echoing in a hollow space
4.devoid of significance or point hollow n.
1.a cavity or space in something
2.a small valley between mountains
3.a depression hollowed out of solid matter hollow v.
1.remove the inner part or the core of
2.remove the interior of
Idiom of the Day
take responsibility for (someone or something)
to accept responsibility for (someone or something)
My friend refuses to take responsibility for his problems.