main points

• summaryCondensed account of essentials
• gistCentral meaning distilled
• essenceFundamental nature of something
• highlightsNotable moments emphasized
• cruxMost important point

takeaways · bullet · outline · thesis · core · key · central · argument · overview · nutshell · distill · substance · bottom line · recap · salient · crucial · points · essentials

• summariessummary, synopsis, summaries, abstract, abstracts
• summarizingsummary, synopsis, abridgment, condensation, digest
• fundamentalsbasics, fundamentals, essentials, foundation, ABCs
• Essay Partsintroduction, intro, body, thesis, conclusion