A definition essay defines an object, phenomenon or idea. Normally, definition essays may represent a combination of writing styles and features from different types of essays utilized to disclose all peculiarities of a multifold object. A definition essay should give to the reader a deeper insight into the essence of an object, as dictionaries frequently give limited formal definitions that do not reflect many significant peculiarities of the defined object. The writer of a definition essay should demonstrate an absolute understanding of the defined subject, along with the ability to convey this understanding to a reader.

While preparing to write a definition essay, it is necessary to remember that one word or term may have multiple meanings. It is necessary to study all of these meanings carefully and make the necessary notes. All identified meanings should be organized into a detailed outline that will delineate the information that is going to be transferred to the reader. It is preferable to avoid of using vocabulary definitions within the definition essay. The writer should also exclude any parasite word-formations, as “is when" or “is where" as they make an essay sound unconvincing and amateurish.