The term 'theme' can refer to a variety of different concepts, from a DISSERTATION to an AFFAIR. A DISSERTATION is a long written document that presents the author's research and findings, while an AFFAIR is a romantic or sexual relationship between two people. A MANUSCRIPT is a written work, such as a book or play, while an EXPOSITION is a detailed explanation of a particular TOPIC. A PROPOSITION is a statement or IDEA that is put forward for consideration, while a CHORUS is a group of singers or actors who perform together. A KEYNOTE is a speech or lecture that sets the tone for a meeting or event, while a COMPOSITION is a piece of writing or music. A burden is a responsibility or obligation, while a LEITMOTIV is a recurring theme or MOTIF in a work of literature or music. A CRUX is the most important or essential part of something, while a GIST is the main POINT or essence of something. An ARGUMENT is a set of reasons or facts used to support a claim, while an IDEA is a thought or suggestion. A PAPER is a written document, while an ARTICLE is a piece of writing on a particular SUBJECT. MATTER is a substance or material, while a POINT is an opinion or view. An ESSAY is a short piece of writing on a particular SUBJECT, while a lara is a traditional Spanish folk song. A MOTIF is a recurring element in a work of art or literature, while a TOPIC is a SUBJECT of conversation or discussion. A SUBJECT is a person or thing that is being discussed, while a mainidea is the central IDEA of a text. Nevershirk is a phrase meaning to never shirk one's responsibilities.