An additional type for the item, typically used for adding more specific types from external vocabularies in microdata syntax. This is a relationship between something and a class that the thing is in. In RDFa syntax, it is better to use the native RDFa syntax - the 'typeof' attribute - for multiple types. Schema.org tools may have only weaker understanding of extra types, in particular those defined externally.

An alias for the item.

A category for the item. Greater signs or slashes can be used to informally indicate a category hierarchy.

A description of the item.

A sub property of description. A short description of the item used to disambiguate from other, similar items. Information from other properties (in particular, name) may be necessary for the description to be useful for disambiguation.

Relates a property to a class that is (one of) the type(s) the property is expected to be used on.

Equivalent property IRI(s).

The identifier property represents any kind of identifier for any kind of [Thing](http://schema.org/Thing), such as ISBNs, GTIN codes, UUIDs etc. Schema.org provides dedicated properties for representing many of these, either as textual strings or as URL (URI) links. See [background notes](https://schema.org/docs/datamodel.html#identifierBg) for more details.

An image of the item. This can be a [URL](http://schema.org/URL) or a fully described [ImageObject](http://schema.org/ImageObject).

Relates a property to a property that is its inverse. Inverse properties relate the same pairs of items to each other, but in reversed direction. For example, the 'alumni' and 'alumniOf' properties are inverseOf each other. Some properties don't have explicit inverses; in these situations RDFa and JSON-LD syntax for reverse properties can be used.

Indicates an item or CreativeWork that this item, or CreativeWork (in some sense), is part of.

Indicates a page (or other CreativeWork) for which this thing is the main entity being described. See [background notes](https://schema.org/docs/datamodel.html#mainEntityBackground) for details.

Kebab-case Material Design Icons identifier for a Class, DataType, Enumeration, EnumerationMember, or Property.

The name of the item.

Description is not available yet.

Indicates a potential Action, which describes an idealized action in which this thing would play an 'object' role.

Relates a property to a class that constitutes (one of) the expected type(s) for values of the property.

URL of a reference Web page that unambiguously indicates the item's identity. E.g. the URL of the item's Wikipedia page, Wikidata entry, or official website.

A CreativeWork or Event about this Thing.

Parent property of this Property.

Relates a term (i.e. a property, class or enumeration) to one that supersedes it.

URL of the item.