Summary is a short statement of the main points or a comprehensive and brief abstract, recapitulation, or compendium of previously stated facts or statements.

Hierarchical outline is a list arranged to show hierarchy and relationships and is a type of tree structure.

General outline is a summary or overview of a subject.

List is a simple series of words, numerals, and other items, written or printed together in a meaningful grouping, sequence, or arranged according to some system to constitute a record.