olemus
sõltub kontekstist

Wiktionary:
1. a line marking the boundary of an object figure.
2. the outer shape of an object or figure
3. a sketch or drawing in which objects are delineated in contours without shading
4. a general description of some subject
5. a statement summarizing the important points of a text
6. a preliminary plan for a project

outline of document -- dokumendi kava
outline representation -- kontuuresitus

näiteid
https://en.wikipedia.org/wiki/Contour_line

https://en.wikipedia.org/wiki/Contour_drawing

https://en.wikipedia.org/wiki/Outline_(list)