An abbreviation of “arbitraries.” A title industry word, used primarily in abstract plants and title plants, which refers to simplified forms of land descriptions arbitrarily used in indexing such plants in lieu of the more involved and complex descriptions contained in deeds, mortgages and other real estate instruments. Arbitrary descriptions are often found in areas where land ownerships are highly irregular and are of all manner of shapes and sizes and are described by metes and bounds. Such tracts are usually laid out on an area map and each tract is given an arbitrary name or number. All instruments affecting a given tract are indexed under the arbitrary name or number.