The different freedoms in the First Amendment of the US Constitution are known as the freedom of expression.
Within the first amendment, there are several different freedoms guaranteed to citizens including:
1) Freedom of religion.
2) Freedom of speech.
3) Freedom of the press.
4) Freedom/Right to petition.
5) Freeom/Right to peacefully assemble.
All of these freedoms allow citizens to express themselves in American society through a variety of ways.