Controversy (noun)

1. A state of prolonged public disagreement or heated debate.
2. A matter or situation that is the subject of disagreement or debate.
3. A dispute or disagreement, especially a public one.

Origin:

From latin controversia, from controversus ("disputed, disputed"), from contra ("against") + versus ("turne.d")

Examples:

1. The controversy over gun control continues.
2. The movie caused controversy for its depiction of violence.
3. The new policy has caused controversy in the business community.
4. The book has caused controversy for its criticism of religion.
5. The decision has caused controversy among the public.