Subject for debate is a term used to describe a TOPIC or issue that is open to discussion and often has multiple sides. It is a phrase used to refer to a controversial or contentious issue that is likely to generate a lot of discussion and disagreement. It can be used to refer to any issue that is up for debate, such as political, social, or economic issues. It is also used to refer to topics that are discussed in academic settings, such as in classrooms or at conferences.