Protestant (noun)

1. A member of any of the Christian denominations that separated from the Roman Catholic Church during the Reformation in the 16th century.
2. A person who adheres to any branch of Protestantism.
3. A person who protests or expresses opposition to something.

Origin:

From latin protestantem, present participle of protestari ("to protest"), from pro- ("forward") + testari ("to bear witness").

Examples:

1. The majority of the population in the country is protestant.
2. She is protestant and goes to a baptist church.
3. The protestant reformation in the 16th century led to the formation of various denominations.
4. The factory workers organized a protestant against the company's decision to lay off workers.
5. The students made a protestant against the school's decision to increase tuition fees.