The term “thesis” is used in two different ways. In the first sense, a thesis is a statement which can be supported or refuted by a variety of arguments, and it is typically included at the beginning of a paper in the form of a “thesis statement” which prepares readers for the contents of the paper. A thesis can also take the form of a formal written paper which is part of the graduation requirements for advanced degrees. You may also hear this type of thesis referred to as a dissertation.

In the first sense, a thesis is an important part of the structure of a paper, and it can be opposed with an antithesis. Creating a strong thesis is a very important skill in paper writing, because it is the first step in formulating supportive arguments and material. By establishing a clear thesis, an author can also keep a paper on track, as the thesis acts as a roadmap for the paper.

In the second sense, a thesis is serious business. Most people who receive a Master's or Doctorate degree have written a thesis, which is typically based in original research in the field. A Doctoral thesis tends to be more demanding and extensive than a Master's thesis, but both demand a high level of professionalism and high quality research. In regions where one is expected to get a Master's degree before pursuing a Doctorate, it is conventional to submit a Master's thesis, although this requirement may sometimes be waived.

A typical thesis includes a title page, an abstract, the contents of the paper, and the supporting bibliography and appendices. It is reviewed by a thesis committee which varies in size, but typically includes at least one person from an outside discipline. After reviewing the thesis, the committee can accept it, reject it and demand revisions, or reject the student from candidacy for an advanced degree altogether, although this is rare.

For people in creative disciplines, a thesis can take the form of a performance, an art piece, or another piece of creative work, in which case it is known as a creative thesis. Creative theses are judged by the same challenging standards as more conventional theses, and a thesis committee may require the creator to submit a brief paper along with the creative work. For example, a playwright might submit a paper discussing the research and techniques used to write the play as part of his or her thesis.