# collection (group)

a set of items that are together in a place

- Computed level: L5 (depth in the emergence graph, not abstraction)
- Status: review  ·  Domain: lexical  ·  Arena: collection

## Emergence
**Emerges from:** [sets](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-sets.grouped), [items](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-items.object), [space](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-space.extent)

**Through:** the items are grouped as a set and coexist within a shared extent of space

**Novel properties:**
- spatial co-location
- collective presence
- bounded plurality

## Examples
- The British Museum houses a collection of 13 million artifacts from seven millennia of human history. *(institutions)*
- A cloud chamber reveals a collection of condensation trails left by ionizing particles from cosmic rays. *(physics)*
- The Linux kernel source tree contains a collection of over 30,000 files in its 6.1 release. *(computing)*

## Used by
- [album](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-album.music) (L6)
- [archive](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-archive.record) (L13)
- [database](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-database.information) (L9)
- [directory](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-directory.information) (L9)
- [library](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-library.information) (L18)
- [pics](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-pics.visual) (L14)
- [pictures](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-pictures.visual) (L8)
- [statistics](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-statistics.data) (L8)
- [stock](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-stock.inventory) (L13)
- [text](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-text.written) (L7)

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*Canonical: https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-collection.group*  
*Structured data: https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-collection.group.json*  
*Every definition provably resolves to space, time, energy and pattern.*