In a Parliamentary system, the Official Opposition is the second largest party in Parliament.

The current (2011) Federal Opposition leader in Australia is Tony Abbott. Abbott became the Federal Opposition leader on 1 December 2009.

In parliamentary democracies the leader of the opposition is the leader of the largest parliamentary party not in the government. Their job is to shadow the Prime Minister or Premier and hold the government to account.

The classes' opposition to the extra homework was of no interest to the teacher.

Prime Minister

Speaker of lower house

Leader of Opposition

President

Universal opposition is usually referring to the opposition to universal healthcare. Universal healthcare allows individuals to receive healthcare without paying for it. They do, however, pay extra taxes each year. Opposition to universal healthcare means that you do not agree with it.