Domain System

A domain is a conceptual namespace that groups related vocabulary under a shared substrate and organizing principle. Domains are first-class linguistic objects in Tonesu — they act as productive roots from which specialized terminology grows through compounding, rather than requiring new primitives.

What a Domain Is

Domains solve a core language-design problem: How do you expand vocabulary into specialized fields without fragmenting the primitive set?

Instead of adding dozens of new primitive roots for, say, computing or genetics, Tonesu declares a single domain root (da-to-ki = computation) and derives all related terms by compounding that root with existing concepts.

A domain is: substrate + organizing principle.

        Computing domain
              ↓
    substrate (to)   +   principle (ki)
    information         transformation/process
              ↓
  da-to-ki  =  computation

Once declared, a domain is productive:

da-to-ki  +  -mu  →  computing device  (computer)
da-to-ki  +  -su  →  computing structure  (algorithm)
da-to-ki  +  -li  →  computing agent  (programmer)

Structure: Substrate + Principle

Every domain is defined by exactly two primitive roots:

Component	Role	Example
Substrate	The conceptual material the domain operates on	`to` (information/pattern)
Principle	How that material is organized or transformed	`ki` (change/process)

The domain label itself is a compound: da-{substrate}-{principle}.

da-zo-to    =   life-domain + information-principle
               (genetics / bioinformatics)

da-ra-ki    =   energy-domain + process-principle
               (mechanics / motion)

da-to-fe    =   information-domain + formal-reasoning-principle
               (mathematics / logic)

This compositional structure means domain labels are inherently semantic — you can parse them and understand what conceptual intersection they represent.

The Five Domain Rules

1. Declaration Rule

A domain must be justified from meta-concept primitives, not surface objects. It must be broad enough to support multiple derived concepts — a term for a single object is not a domain.

Why: Prevents fragmentation and arbitrary proliferation.

2. Inheritance Rule

New domains can extend an existing domain by adding exactly one modifier.

da-to-ki              base domain: computation
  ↓
da-fe-to-ki           child domain: formal reasoning + computation (logic)
da-ne-to-ki           child domain: networked computation (distributed systems)

Inheritance chains should not exceed 3 levels without strong justification.

3. Composability Rule

Domains can intersect to yield a new domain when a concept genuinely lies at the boundary of two fields.

da-zo         +   da-to      →   da-zo-to
life-domain       knowledge-domain   life-information domain
(biology)         (epistemology)     (genetics / bioinformatics)

Both parent domains must already be registered.

4. Stability Rule

Once a domain root is registered, it is stable. New vocabulary within the domain grows through compounding — not by renaming or redefining the domain.

Why: This is the core lesson from John Wilkins' Real Character (1668). When roots are fixed and vocabulary grows forward, you avoid churn.

5. Scope Rule

Domain names condense over time through three stages:

Stage	Form	Example
1	Explicit compound	`information-transformation domain`
2	Stable label	`computation domain`
3	Lexicalized shortform	`da-compu`

Deriving Vocabulary from a Domain

Once a domain is registered, its label is a productive root. New concepts inside the domain combine the domain root with other primitives or derivational suffixes.

Pattern

{domain root}  +  {concept marker}

Example: Computing Domain (`da-to-ki`)

da-to-ki + -mu    →  computing device          (computer)
da-to-ki + -su    →  computing structure       (algorithm, architecture)
da-to-ki + -ne    →  computing relation        (network)
da-to-ki + -li    →  computing agent           (programmer)
da-to-ki + -pa    →  computing location        (server, data center)
da-to-ki + -ka    →  computing action          (to process, to compute)

Each derived term is compositional — the meaning is transparent from its parts.

Domain Registry

Cross-Domain Foundation

These provide meta-structure; other domains inherit from or compose with them.

Domain	Name	Substrate	Principle	Notes
`da-su`	Structure	`su` order	`su` arrangement	meta-structure domain
`da-ki`	Process	`ki` change	`ki` sequence	transformation domain
`da-to`	Knowledge	`to` pattern	`to` organization	epistemology domain
`da-li`	Agency	`li` person	`wi` intention	action / social actor domain

Physical Sciences

Domain	Name	Substrate	Principle	Parent	Notes
`da-ra`	Energy	`ra` energy	`ki` transfer	—	thermodynamics, physics
`da-ki-ra`	Motion	`ki` motion	`ra` force	`da-ra`	mechanics
`da-ma`	Matter	`ma` substance	`su` composition	—	chemistry, materials
`da-pa`	Space	`pa` space	`su` topology	—	geometry, topology

Life Sciences

Domain	Name	Substrate	Principle	Parent	Notes
`da-zo`	Life	`zo` living thing	`be` growth	—	biology broadly
`da-zo-su`	Life-Structure	`zo` organism	`su` organization	`da-zo`	anatomy, cell biology
`da-zo-to`	Life-Information	`zo` organism	`to` pattern/encoding	`da-zo`	genetics, bioinformatics

Information & Computation

Domain	Name	Substrate	Principle	Parent	Notes
`da-to-ki`	Computation	`to` information	`ki` transformation	`da-to`	computing broadly
`da-to-su`	Memory	`to` information	`su` storage	`da-to`	databases, data storage
`da-si-ne`	Communication	`si` signal	`ne` transfer	—	networks, language
`da-to-fe`	Logic	`to` pattern	`fe` formal reasoning	`da-to`	mathematics, formal systems

Domain	Name	Substrate	Principle	Parent	Notes
`da-li-ne`	Social	`li` person	`ne` relation	`da-li`	society, governance, kinship
`da-to-ki-li`	Education	`to` knowledge	`ki-li` learning/transfer	`da-to`	teaching, learning
`da-vo`	Value	`vo` value	`vo` judgment	—	ethics, aesthetics, beauty

Religion & Doctrine

Religious authority and knowledge authority are structurally identical in Tonesu: the priest is an archivist of doctrine (to-su-li).

Domain	Name	Substrate	Principle	Parent	Notes
`da-to-re`	Doctrinal	`to` knowledge	`re` recurrence/tradition	`da-to`	religion, canon, tradition

Key compounds from religious contexts:

wi-si          prayer / will-signal
to-re-su       canonical doctrine / scripture
fe-vo          sacredness (set-apart value)
zo-to          soul / identity-pattern
zo-si          spirit / disembodied agent

Mystic & Resonance

Covers mystic phenomena: resonance between will and physical systems, intentional practice, anomalous signal patterns, and non-ordinary perception. All core mystic concepts already derive from existing primitives.

Domain	Name	Substrate	Principle	Notes
`da-wi-ra`	Resonance	`wi` will/intention	`ra` force/energy	mystic practices, ritual, perceptual states

Key compounds:

pa-ra          field (spatial energy distribution)
wi-ka-su       ritual (organized intentional-action structure)
fe-su          ward / protective barrier
zo-se-ki       trance (organism-perception state transition)
ne-ra          resonance / energetic coupling

When to Use Domains

Domains are used: - In specialized vocabulary — Writing about computing, biology, or mathematics? Use domain compounds. - In teaching — Show learners how related concepts nest under a single domain root. - In compounding — When you need to create a new term, check if it belongs to an existing domain.

Domains do not appear in basic narrative or everyday speech unless the specialized terminology itself is the topic.

Proposing a New Domain

To propose a new domain:

Identify substrate and principle using existing primitives
Confirm no existing domain already covers the space
Show at least 3 child concepts would be expressible under the domain
Document with: substrate, principle, rationale, and 2–3 example derived terms

Example:

Proposed domain: da-no-ma (scarcity domain)
  Substrate: no (negation/absence)
  Principle: ma (matter/stuff)
  Rationale: Economics, resource allocation, scarcity reasoning

  Example derived terms:
    - da-no-ma-li  :  economic agent (merchant, trader)
    - da-no-ma-pa  :  market (place of scarcity negotiation)

The domain advances to "accepted" status once 3 derived child terms are registered in the word registry.

Design Philosophy

Domains embody a core Tonesu principle: compositionality and stability over vocabulary inflation. Instead of adding new roots whenever specialized vocabulary is needed, Tonesu fixes domain roots and allows vocabulary to grow naturally through compounding.

This design: - Reduces primitives — The base set stays small and manageable - Makes terminology transparent — You can parse da-to-ki-mu and know it means "computer" (computation-device) - Supports growth — New fields and concepts integrate without redefining core roots - Enables translation — Specialized terminology maps clearly to source-language structure