Prejudice
Attitudes or opinions about a person or group simply because the person belongs to a specific religion, race, nationality, or other group. Prejudice is pre-judging. A person who thinks," I don’t want him/her living in my neighborhood," is expressing a prejudice.

Stereotype
Oversimplified generalization about a group of people. When people say that all members of a specific nationality, religion, race or gender are "cheap, lazy criminal or dumb," they are expressing stereotypes. All groups have both cheap and generous individuals. All groups have individuals that commit crimes. To label some based on the actions of a few is stereotyping.

Discrimination
When people act on the basis of their prejudices or stereotype, they are discriminating. Discrimination may mean putting other people down, not allowing them to participate in activities, restricting their access tot he work or to live in certain neighborhoods, or denying them something they are entitled to by law.

Scapegoating
Blaming an individual or group when the fault actually lies elsewhere. Prejudicial attitudes and discriminatory acts can lead to scapegoating.