C21 · Reference edition 2026.11
Reference vocabulary — Definition and boundaries
Shared vocabulary supports discussion only when definitions and examples are understood consistently. Similar words can carry different meanings.
Scope and purpose
Start by separating the named concept from adjacent concepts. Use the observation below to identify the question the record is intended to answer. Read the caution before applying the example. A definition is useful only when another reader can tell what falls outside it.
Working notes
This atlas connects descriptive vocabulary, observation context and reference-sheet design. All example records are synthetic and exist to explain a method of documentation; they do not represent tested batches, product ratings or scientific results. The diagrams are original editorial graphics. Descriptions of perceived character are kept separate from ingredient, origin, health and certification claims. Read definitions and scale anchors before comparing records.
Practical example
Link a descriptor to its definition and note how it differs from a neighbouring term.
| Reference record | Interpretation |
|---|---|
| C21 | Reference vocabulary |
| Scope and purpose | Shared vocabulary supports discussion only when definitions and examples are understood consistently. Similar words can carry different meanings. |
| Limits and interpretation | Do not present a private vocabulary as an international standard. |
Review checklist
Write a one-sentence scope statement; identify a neighbouring concept; record what the example does not establish.