What is the Meaning & Definition of category

The word category has several references.
On the one hand, it shall appoint as category to the sector, all companies or businesses that fall into an area differential within the economic and productive activities.
Also, in the Classifieds, to each of the sections in which these sectors are grouped, designate them is with the term for category. For example, where we frequently find Classifieds is in a journal or newspaper, meanwhile, the most common items that often appear in them and in which people take advantage to publish their notices, needs or offers, among others, include the following: health, rooms for rent, rental properties, purchase and sale of real estate, buying and selling of motor vehicles shipping, orders and jobs offered, several, personal family house offered, among others.
And the last applications that has the word, at the behest of an accounting context, says that business is the title that brings together a group of accounts.
Because in putting together a budget, it must be divided into products, according to the type of budget that is done there will be different categories. For example, if you want to make a territorial budget, the same divisions will be: North zone, South zone, West zone, zone East, among others.