uh oh, this might be entertaining.....
simply put - something that links 2 or more living things.
I probably shouldn't put my personal definition seeing as I wouldn't say i've had a real relationship. I've known some women to consider a relationship something to make other men jealous. Then again, i've known some men who consider a relationship a tool to attract other women. Some people have no standards, no morals, no decency.
Ponie's got it right, everyone's different so everyone is different.