If you mean, what is an article, instead of what is a article, then an article is a written full text document or literary work. It may be for a newspaper, magazine, journal or just an informational document. In addition, an article in grammar can be either a, an or the, and these are used before a noun. You can find more information here: http://lib.oh.us/content/what-article http://www.brainyquote.com/words/ar/article132563.html
