My understanding of Protestantism is that the individual has a personal relation with
God without an intermediary. This frees the worshipper from institutional rules.
Christianity.
The main branches of Christianity are Protestantism and Catholicism.
Protestantism
Christianity; protestantism.
Stephen F. Brown has written: 'Protestantism (World Religions)' 'Protestantism' 'Christianity' -- subject(s): Christianity, Juvenile literature
Christianity--the three largest groups are: Evangelical Protestantism, followed by Roman Catholicism, then mainline Protestantism.
Catholic & Lutheran Christianity.
Christianity is, represented by both Catholicism & Protestantism.
Christianity, particularly protestantism
Eastern Orthodoxy is one form of Christianity. Some more may be Roman Catholicism or Protestantism.
Protestantism is part a type of Christianity, though Christianity and Islam are in some ways, similar. The main difference is about Jesus (Muslims believe is a prophet, not the Son of God, like in Christianity). Protestantism believes in simplicity and, in some ways, so does Islam. However, Muslim mosques are quite elaborate, whereas in Protestantism, they are very plain.
The main religion of Switzerland is Christianity - Protestantism and Roman Catholicism.