outline Definition

1. A line that forms or marks the outer edge of an object.

Thesaurus: edge, boundary, side, profile, silhouette, shape, figure, configuration.
2. A drawing with only the outer lines and no shading.
3. The main points, etc without the details.

Example: an outline of the plot
Thesaurus: plan, sketch, draft, skeleton, framework.
4. The most important features of something.

Form: outlines (usually)
5. A line representing a word in shorthand.

1. To draw the outline of something.
2. To give a brief description of the main features of something.

Thesaurus: sketch, recapitulate, summarize, plan, draft, rough out, trace.