Opposition

The Opposition are the political parties in the House of Commons other than the largest or Government party. They are called the Opposition because they sit on the benches opposite the Government in the House of Commons Chamber. The largest of the Opposition parties is known as Her Majesty's Opposition. The role of the Official Opposition is to question and scrutinise the work of Government. The Opposition often votes against the Government. In a sense the Official Opposition is the "Government in waiting".

Deputy Prime Minister

The office of Deputy Prime Minister is one that has only existed occasionally in the history of the United Kingdom. Unlike analogous offices in other nations, the Deputy Prime Minister does not have any of the powers of the Prime Minister in the latter's absence and there is no presumption that the Deputy Prime Minister will succeed the Prime Minister.

The post has existed intermittently and there have been a number of disputed occasions as to whether or not the title has actually been conferred.

More from wikipedia: http://en.wikipedia.org/wiki/Deputy_Prime_Minister_of_the_United_Kingdom

Order Paper

The order paper is issued daily and lists the business which will be dealt with during that day's sitting of the House of Commons.

It provides MPs with details of what will be happening in the House throughout the day.

It also gives details of when and where the standing committees and select committees of the Commons will be meeting.

Written questions tabled to ministers by MPs on the previous day are listed at the back of the order paper.

The order paper forms one section of the daily vote bundle and is issued by the Vote Office