Field

• Generally, a field is an open land area, used for growing agricultural crops.\n*When applied to a subject, a field is the area or set of topics which the subject covers.\n*In mathematics, a field (mathematics) is an algebraic structure in which one can add, subtract, multiply and divide, similar to the real numbers. \n*In physics and vector calculus, a field (physics) is an assignment of a quantity to every point of space. \n*In computer science, a field (computer science) is one part, usually named, of multipart data. Databases and programming languages use fields when working with composite data.\n*In photography, depth of field is the distance to the subject of the photograph.\n*In sports, a playing field is the area in which the sport is played.

You may also be looking for:\n* John Charles Fields, a mathematician