Synonyms for "outline level" in English

– Paragraph formatting you can use to assign a hierarchical level (Level 1 through Level 9) to paragraphs in your document. For example, after you assign outline levels, you can work with the document in outline view or in the Document Map. ¹

– The number of levels that a task is indented from the top level of the outline. You can indent tasks up to 65,000 levels in Project. ¹