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
a dirty look
a look that shows dislike or disapproval
The boy's mother gave the boy a dirty look when he entered the kitchen.