# piece (portion)

a part of a thing that has its own boundary

- Computed level: L3 (depth in the emergence graph, not abstraction)
- Status: review  ·  Domain: everyday  ·  Arena: common

## Emergence
**Emerges from:** [part](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-part.relation), [boundary](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-boundary.limit)

**Through:** If a part of a thing has its own boundary, it is a piece

**Novel properties:**
- own boundary
- individual identity

## Examples
- The Moon broke off from Earth after a collision with the protoplanet Theia 4.5 billion years ago. *(astronomy)*
- A liver lobe performs filtration independently until disease erodes its capsule. *(biology)*
- The Berlin Wall divided the city into sectors, each under separate administrative control until 1989. *(institutions)*

## Used by
- [article](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-article.written) (L9)
- [bar](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-bar.structure) (L10)
- [bed](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-bed.furniture) (L17)
- [bit](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-bit.quantity) (L5)
- [board](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-board.material) (L16)
- [body](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-body.physical) (L10)
- [cable](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-cable.electrical) (L14)
- [card](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-card.paper) (L16)
- [case](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-case.container) (L6)
- [copyright](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-copyright.legal) (L10)
- [data](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-data.information) (L7)
- [days](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-days.temporal) (L4)
- [details](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-details.information) (L7)
- [document](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-document.record) (L17)
- [edit](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-edit.process) (L7)
- [email](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-email.digital) (L9)
- [files](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-files.digital) (L10)
- [five](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-five.cardinal) (L6)
- [give](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-give.transfer) (L7)
- [hundred](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-hundred.quantity) (L8)
- [island](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-island.geographic) (L15)
- [key](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-key.tool) (L10)
- [letter](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-letter.written) (L17)
- [list](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-list.ordered) (L9)
- [log](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-log.material) (L13)
- [mail](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-mail.postal) (L8)
- [notes](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-notes.written) (L14)
- [page](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-page.sheet) (L16)
- [paper](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-paper.material) (L16)
- [post](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-post.mail) (L4)
- [print](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-print.material) (L13)
- [profile](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-profile.personal) (L9)
- [review](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-review.assessment) (L7)
- [rock](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-rock.material) (L14)
- [sample](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-sample.material) (L11)
- [sand](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-sand.material) (L10)
- [section](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-section.portion) (L5)
- [song](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-song.musical) (L11)
- [ten](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-ten.numeric) (L7)
- [thread](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-thread.material) (L18)

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