it means that you think what someone else is thinking but you don't know if it's right
It means: think the same thing.
big, enormous, gigantic,
It really depends on the context. If you are referring to mad as in crazy, no it is not the same. But if you mean mad as in furious then yes, it's the same.
um.... ya i think they do mean the same thing
needed
No, invent means to create something, think means to think of something.
== == I think they don't mean the same thing because an auditorium is for a show, and a bough is part of a tree.
It means they think the same way.
by same i think you mean color, which in case is no, they can be different colors and breed.
I'm not sure what you mean, but I THINK you mean to say "of the same age", as in "Greg and Sue are of the same age" (meaning that they are as old as each other).
I would think that things that mean the same as unique are the following: different, unusual, rare, one, uncommon.
Assuming you mean what I think you mean, usually one, same as humans.