An outline shows subheadings, supporting ideas, and details by indenting from the left margin.
"An indentation or indent is an empty space" at the start of a line to indicate the beginning of a new paragraph in the written form of many languages.
A general plan of what you're going to write in the final paper is called an outline. It will display the arrangement of your data, the topics covered in each paragraph, etc. An outline is a hierarchical approach to show connected text pieces so that their relationships can be graphically represented.
By indenting from left to right margin, information transitions from general to specific.
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