As of 2022-03-07, the Wikidata property union of (P2737) is used on 262 items as main value on statements (not counting qualifiers) of the Q and P namespaces.

Closest properties: by cardinality of intersection, by Jaccard index.

Display properties of the following types:                                    

Closest properties by cardinality of intersection

IDLabelIntersection cardinalityJaccard index
P279 subclass of 222
0.0001
P31 instance of 75
0.0000
P646 Freebase ID 62
0.0000
P373 Commons category 48
0.0000
P18 image 45
0.0000
P6366 Microsoft Academic ID 44
0.0002
P2671 Google Knowledge Graph ID 38
0.0000
P1889 different from 37
0.0001
P910 topic's main category 34
0.0001
P10283 OpenAlex ID 31
0.0003
P3827 JSTOR topic ID 27
0.0011
P508 BNCF Thesaurus ID 26
0.0016
P2581 BabelNet ID 26
0.0004
P227 GND ID 26
0.0000
P1417 Encyclopædia Britannica Online ID 25
0.0001
P1343 described by source 25
0.0000
P244 Library of Congress authority ID 25
0.0000
P8408 KBpedia ID 24
0.0006
P3417 Quora topic ID 23
0.0001
P2812 MathWorld identifier 22
0.0047
P2738 disjoint union of 21
0.0320
P1245 OmegaWiki Defined Meaning 18
0.0015
P461 opposite of 18
0.0008
P2347 YSO ID 18
0.0007
P486 MeSH descriptor ID 18
0.0005
P349 National Diet Library ID 18
0.0001
P8189 National Library of Israel J9U ID 17
0.0001
P361 part of 17
0.0000
P2924 Great Russian Encyclopedia Online ID 16
0.0003
P3553 Zhihu topic ID 15
0.0010
P7818 French Vikidia ID 15
0.0007
P2892 UMLS CUI 15
0.0006
P3219 Encyclopædia Universalis ID 15
0.0005
P1552 has quality 15
0.0003
P268 Bibliothèque nationale de France ID 15
0.0000
P1051 PSH ID 14
0.0023
P1296 Gran Enciclopèdia Catalana ID 14
0.0001
P672 MeSH tree code 13
0.0008
P527 has part or parts 13
0.0000
P407 language of work or name 13
0.0000
P2579 studied by 11
0.0021
P7033 Australian Educational Vocabulary ID 11
0.0013
P4527 UK Parliament thesaurus ID 11
0.0004
P1963 properties for this type 10
0.0066
P4342 Store norske leksikon ID 10
0.0001
P17 country 10
0.0000
P577 publication date 10
0.0000
P1476 title 10
0.0000
P3569 Cultureel Woordenboek ID 9
0.0016
P1995 health specialty 9
0.0010

Closest properties by Jaccard index

IDLabelIntersection cardinalityJaccard index
P2738 disjoint union of 21
0.0320
P9230 NLS place type ID 3
0.0102
P8225 is metaclass for 6
0.0098
P5134 evaluation of 2
0.0070
P3950 narrower external class 2
0.0068
P1963 properties for this type 10
0.0066
P6541 Stack Exchange site 2
0.0056
P7554 Encyclopedia of Mathematics wiki ID 3
0.0055
P2812 MathWorld identifier 22
0.0047
P1709 equivalent class 6
0.0047
P10203 All-Science Journal Classification Codes 2
0.0041
P6186 category for eponymous categories 2
0.0039
P8472 Encyclopedie berbere keyword ID 2
0.0039
P9445 Encyklopedie antropologie ID 1
0.0038
P7832 Basque Vikidia ID 4
0.0038
P9779 abART term ID 1
0.0037
P10019 term in higher taxon 1
0.0036
P5471 Harmonized System Code 1
0.0035
P5085 Pschyrembel Online ID 1
0.0035
P9954 Product and Service Code 1
0.0035
P9997 Bowers acronym 2
0.0034
P5125 Wikimedia outline 3
0.0033
P7827 Spanish Vikidia ID 6
0.0033
P2612 TED topic ID 2
0.0032
P8984 CPV Supplementary 1
0.0032
P6781 ProofWiki ID 1
0.0031
P7889 Cambridge Encyclopedia of Anthropology ID 1
0.0031
P5131 possible medical findings 1
0.0031
P2152 antiparticle 1
0.0030
P5429 IPTC NewsCode 3
0.0029
P4618 AUSNUT 2011–13 Food Group ID 1
0.0028
P9983 Enciclopedia dei ragazzi ID 1
0.0028
P9123 Catalan Vikidia ID 2
0.0027
P8785 AniDB tag ID 3
0.0027
P1880 measurement scale 1
0.0027
P3559 maximum size or capacity 1
0.0027
P5642 risk factor 1
0.0026
P920 LEM ID 2
0.0026
P5064 World of Physics identifier 1
0.0026
P4979 Thésaurus de la désignation des objets mobiliers ID 1
0.0025
P667 ICPC 2 ID 3
0.0025
P4756 V Live channel ID 1
0.0025
P7712 Joconde domain ID 1
0.0024
P1051 PSH ID 14
0.0023
P6279 ZVR-Number 1
0.0022
P3612 Le Monde diplomatique subject ID 2
0.0022
P8285 LGBT Danmark online dictionary ID 1
0.0021
P2579 studied by 11
0.0021
P1678 has vertex figure 1
0.0021
P2849 produced by 1
0.0021