Outline

Part of speech: noun, verb

Pronunciation: /ˈaʊtlaɪn/

Definitions

1. A line or set of lines indicating the outer edges or shape of an object or figure ; a summary or general description of the main points or structure of a subject ; a preliminary sketch or plan showing the essential features without detail
2. The external contour or silhouette that defines the shape of something ; a brief overview or abstract that presents the key ideas or framework ; a rough draft or drawing used to map out the basic layout before finalizing
3. The border or boundary line that marks the form of an item ; a succinct statement or plan that highlights the central themes or organization ; an initial drawing or schema used as a guide for more detailed work

Etymology: "Outline" is a plain compound: "out" combined with "line." The idea is literal. An outline was the line that marks the outer edge of something, the contour you could trace around a figure or object to capture its shape. That drawn boundary is still the core sense when someone sketches a rough outline of a painting. The leap from physical edge to abstract summary is what gives the word its modern meaning. Once people spoke of the outline of a plan or argument, they meant the frame that shows its main shape without the details, so a "main shape or summary" is simply the outer contour of an idea rather than a drawing. The verb follows the same logic: to outline something is to trace or describe its boundaries and principal features.

Synonyms: sketch, draft, summary, plan, framework

Antonyms: detail, expansion, elaboration, fullness, completion