reef

feature lying beneath the surface of the water
Thing general Q184358
reef
NASA image by Jesse Allen and Rob Simmon, using data provided by the United States Geological Survey. · Public Domain · Wikimedia
Press Enter · cited answer in seconds

reef

Summary

reef ranks in the top 2% of general entities by monthly Wikipedia readership (1,359 views/month).[1]

Key Facts

  • reef is a type of landscape[2].
  • reef is a type of undersea landform[3].
  • reef is a type of shoal[4].
  • reef's Commons category is recorded as Reefs[5].
  • reef's topic's main category is recorded as Category:Reefs[6].
  • reef's OpenStreetMap tag is recorded as natural=reef[7].
  • reef's described by source is recorded as Encyclopædia Britannica 11th edition[8].
  • reef's studied by is recorded as reef ecology[9].
  • reef's exact match is recorded as http://purl.obolibrary.org/obo/ENVO_00000130[10].

Body

Definition and Type

Recorded subclass of include landscape[2], undersea landform[3], and shoal[4].

Influence

Things named for reef include R-39 Rif[11], a missile model[12].

Why It Matters

reef ranks in the top 2% of general entities by monthly Wikipedia readership (1,359 views/month).[1] reef has Wikipedia articles in 29 language editions, a strong signal of global cultural recognition.[13] reef is known by 35 alternative names across languages and contexts.[14]

Entities named for reef include R-39 Rif[11], a missile model[12].

References

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

Direct Wikidata claims

  1. [2] . wikidata.org.
  2. [3] . wikidata.org.
  3. [4] . wikidata.org.
  4. [5] . wikidata.org.
  5. [6] . wikidata.org.
  6. [7] . wikidata.org.
  7. [8] . wikidata.org.
  8. [9] . wikidata.org.
  9. [10] . Environment Ontology. Retrieved . raw.githubusercontent.com. Provenance: wikidata.org.

Inverse relationships (entities pointing at this one)

  1. [11] . wikidata.org. → on this site

Inline context (facts about related entities)

  1. [12] . Wikidata. wikidata.org. → on this site

Aggregate / graph-position facts

  1. [1] . Wikimedia Foundation. dumps.wikimedia.org.
  2. [13] . Wikidata sitelinks. wikidata.org.
  3. [14] . 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). reef. Retrieved April 10, 2026, from https://4ort.xyz/entity/reef
MLA “reef.” 4ort.xyz Knowledge Graph, 4ort.xyz, 10 Apr. 2026, https://4ort.xyz/entity/reef.
BibTeX @misc{4ortxyz_reef_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{reef}}, year = {2026}, url = {https://4ort.xyz/entity/reef}, note = {Accessed: 2026-04-10}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): reef — https://4ort.xyz/entity/reef (retrieved 2026-04-10)

Canonical URL: https://4ort.xyz/entity/reef · 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. 25d ago · ToscaHardy · 2026-06-10 view diff on Wikidata ↗
    Made from material Q23757
    "/* wbsetclaim-create:2||1 */ [[Property:P186]]: [[Q23757]]"
  2. 6w ago · Twofivesixbot bot · 2026-05-24 view diff on Wikidata ↗
    Studied by reef ecology
    Subclass of
    Described by source Encyclopædia Britannica 11th edition
    Local thumb
    + 3 other properties edited (see Wikidata diff for full list)
    "/* wbsetclaim-update-qualifiers:1||1|3 */ [[Property:P8189]]: 987007529481405171, mv to monolingual text names on J9U statements"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.