class

collection of items in an ontology defined by common characteristics
Thing metaclass Q16889133
Press Enter · cited answer in seconds

class

Summary

class is a metaclass[1]. class draws 24 Wikipedia views per month (metaclass category, ranking #58 of 61).[2]

Key Facts

  • class's instance of is recorded as metaclass[3].
  • class's instance of is recorded as variable-order class[4].
  • class's instance of is recorded as concept[5].
  • class's instance of is recorded as fundamental Wikidata entity[6].
  • class is a type of class[7].
  • class is used for ontology[8].
  • class's said to be the same as is recorded as class[9].
  • class is the opposite of concrete object[10].
  • class comprises entity[11].
  • class's has cause is recorded as classification[12].
  • class's described at URL is recorded as https://perso.liris.cnrs.fr/alain.mille/enseignements/Ecole_Centrale/What%20is%20an%20ontology%20and%20why%20we%20need%20it.htm[13].
  • class's described at URL is recorded as https://tomgruber.org/writing/onto-design.pdf[14].
  • class's described at URL is recorded as https://www.wikidata.org/wiki/Wikidata:WikiProject_Ontology/Modelling[15].
  • class's facet of is recorded as ontology[16].
  • class's facet of is recorded as ontology language[17].
  • class's facet of is recorded as classification scheme[18].
  • class's described by source is recorded as World Wide Web Consortium[19].
  • class's has characteristic is recorded as criterion[20].
  • class's main Wikidata property is recorded as P2308[21].
  • class's native label is recorded as {'lang': 'en', 'text': 'concept'}[22].
  • class's equivalent class is recorded as https://meta.schema.org/Class[23].
  • class's equivalent class is recorded as https://id.oclc.org/worldcat/entity/Q38[24].
  • class's equivalent class is recorded as http://www.w3.org/2002/07/owl#Class[25].
  • class's different from is recorded as Class[26].
  • class's different from is recorded as Concept[27].

Body

Definition and Type

Recorded instance of include metaclass[3], variable-order class[4], concept[5], and fundamental Wikidata entity[6]. class is a type of class[7]. class is the opposite of concrete object[10].

Use and Application

class is used for ontology[8]. class comprises entity[11].

Why It Matters

class draws 24 Wikipedia views per month (metaclass category, ranking #58 of 61).[2] class is known by 100 alternative names across languages and contexts.[28]

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [3] ↑ . wikidata.org.
  2. [4] ↑ . wikidata.org.
  3. [5] ↑ . wikidata.org.
  4. [6] ↑ . wikidata.org.
  5. [7] ↑ . wikidata.org.
  6. [8] ↑ . wikidata.org.
  7. [9] ↑ . wikidata.org.
  8. [10] ↑ . wikidata.org.
  9. [11] ↑ . wikidata.org.
  10. [12] ↑ . wikidata.org.
  11. [13] ↑ . wikidata.org.
  12. [14] ↑ . wikidata.org.
  13. [15] ↑ . wikidata.org.
  14. [16] ↑ . wikidata.org.
  15. [17] ↑ . wikidata.org.
  16. [18] ↑ . wikidata.org.
  17. [19] ↑ . wikidata.org.
  18. [20] ↑ . wikidata.org.
  19. [21] ↑ . wikidata.org.
  20. [22] ↑ . perso.liris.cnrs.fr. Retrieved . perso.liris.cnrs.fr. Provenance: wikidata.org.
  21. [23] ↑ . wikidata.org.
  22. [24] ↑ . wikidata.org.
  23. [25] ↑ . Q138495145. wikidata.org.
  24. [26] ↑ . wikidata.org.
  25. [27] ↑ . wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [28] ↑ . Wikidata aliases. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). class. Retrieved October 5, 2026, from https://4ort.xyz/entity/class-q16889133
MLA “class.” 4ort.xyz Knowledge Graph, 4ort.xyz, 5 Oct. 2026, https://4ort.xyz/entity/class-q16889133.
BibTeX @misc{4ortxyz_class-q16889133_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{class}}, year = {2026}, url = {https://4ort.xyz/entity/class-q16889133}, note = {Accessed: 2026-10-05}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): class — https://4ort.xyz/entity/class-q16889133 (retrieved 2026-10-05)

Canonical URL: https://4ort.xyz/entity/class-q16889133 · Last refreshed:

Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

  1. 2d ago · عُثمان · 2026-10-05 view diff on Wikidata ↗
    Sitelink count → 2
    Equivalent class → https://meta.schema.org/Class, https://id.oclc.org/worldcat/entity/Q38, http://www.w3.org/2002/07/owl#Class
    Instance of → metaclass, variable-order class, concept +1
    Wikidata description → collection of items in an ontology defined by common characteristics
    + 3 other properties edited (see Wikidata diff for full list)
    "/* wbsetclaim-create:2||1 */ [[Property:P1709]]: http://www.w3.org/2002/07/owl#Class"
  2. 13w ago · AHIOH · 2026-07-03 view diff on Wikidata ↗
    Freebase id → /m/013d7mks
    Disjoint union of → list of values as qualifiers, list of values as qualifiers
    Tdkiv wikibase id → Kirani James
    Properties for this type → P2670
    + 26 other properties edited (see Wikidata diff for full list)
    "/* wbsetclaim-create:2||1 */ [[Property:P31]]: [[Q151885]]"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.