WOLFRAM

Wolfram Language & System Documentation Center

Entity["type",name]

represents an entity of the specified type, identified by name.

Entity[cspec,name]

represents an entity from the computed class, specified by cspec.

Details
Details and Options Details and Options
Examples  
Basic Examples  
Scope  
Properties & Relations  
See Also
Related Guides
Related Workflows
Related Links
History
Cite this Page

Entity   

Listing of Entity Types »

Entity["type",name]

represents an entity of the specified type, identified by name.

Entity[cspec,name]

represents an entity from the computed class, specified by cspec.

Details

Examples

open all close all

Basic Examples  (2)

The entity of type "Country" representing the United States:

Wolfram Language code: Entity["Country", "UnitedStates"]

Find the population of the United States:

Wolfram Language code: %["Population"]

Use to specify an entity using natural language:

Wolfram Language code: ["united states"]

See the underlying structure of the entity:

Wolfram Language code: InputForm[%]

Scope  (6)

The first argument of Entity can be something other than a string:

Wolfram Language code: ent = Entity[AggregatedEntityClass["Country", "Population" -> Total, "Continent"], EntityClass["Country", "Europe"]]

This entity represents all of the countries in Europe, where the population has been aggregated:

Wolfram Language code: ent["Population"]

A list of entities within a given type can be found using EntityList:

Wolfram Language code: EntityList["Planet"]

For ambiguous entities, use the assumption mechanism (») to pick the desired alternative:

Wolfram Language code: ["mercury"]
Wolfram Language code: EntityTypeName /@ {["mercury"], ["mercury"]}

EntityValue can be used to find member "Entities" for a given entity type:

Wolfram Language code: EntityTypeName[["mercury"]]
Wolfram Language code: EntityValue["Planet", "Entities"]

Canonical entity names can be found using CanonicalName:

Wolfram Language code: CanonicalName[["Paris"]]
Wolfram Language code: CanonicalName[EntityList["Planet"]]

Format names can be found using CommonName:

Wolfram Language code: CommonName[["US"]]
Wolfram Language code: CommonName[EntityList["Cloud"]]

Properties of an Entity object can be obtained from Entity[…]["property"]:

Wolfram Language code: Entity["Country", "France"]["Population"]
Wolfram Language code: Entity["Volcano"]["Properties"]

Properties & Relations  (1)

Interpreter often returns Entity objects:

Wolfram Language code: Interpreter["Country"]["usa"]
Wolfram Research (2014), Entity, Wolfram Language function, https://reference.wolfram.com/language/ref/Entity.html (updated 2019).

Text

Wolfram Research (2014), Entity, Wolfram Language function, https://reference.wolfram.com/language/ref/Entity.html (updated 2019).

CMS

Wolfram Language. 2014. "Entity." Wolfram Language & System Documentation Center. Wolfram Research. Last Modified 2019. https://reference.wolfram.com/language/ref/Entity.html.

APA

Wolfram Language. (2014). Entity. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/Entity.html

BibTeX

@misc{reference.wolfram_2026_entity, author="Wolfram Research", title="{Entity}", year="2019", howpublished="\url{https://reference.wolfram.com/language/ref/Entity.html}", note=[Accessed: 12-June-2026]}

BibLaTeX

@online{reference.wolfram_2026_entity, organization={Wolfram Research}, title={Entity}, year={2019}, url={https://reference.wolfram.com/language/ref/Entity.html}, note=[Accessed: 12-June-2026]}