Design Nomenclature / Composition
Scale
Also called relative size
The size of a thing relative to a reference — the frame, the body, another element, or the real-world object depicted. Scale is a relation and requires the reference to be stated; 'large' is not a property of anything. Changing scale changes meaning, not merely size.
In practice
Two senses run together: relative size within a composition, and the ratio a drawing bears to its subject. Ask which is meant before answering.