used to express satisfaction that you have been proved right or that you have done what you intended to do:
There! I've done it! I've resigned.
There, what did I tell you? I knew it wouldn't work.
used to comfort someone who is crying, especially a child:
There, there, don't get so upset!
used to show someone that you do not care what they think and you are not going to change your mind - used by children:
I'm going to Elly's party, and you can't stop me, so there!