What Is Feud?

I have never heard of the game called family feud, so I was researching what the definiton is. The defenition is fighting between relatives or related groups. I went on and looked for the show, I was watching a episode. There were two groups battaling it out trying to get more points than the other team across from them. I think they use the word feud in the game because the show has been going on for many years. The show is about how two groups face eachother and try and win the whole game. Family Feud is a competiton between these people but it is not that serious where people are going to get real upset. It is all in fun of the game, like the defenition says it is all in anger but in family feud its just two groups playing eachother.