The phrase "main point" refers to the most important or central idea or message of something. It's the key concept or objective that someone wants to convey or emphasize. Full definition
In some cases, security cameras should be installed in main points of access to deter criminal activity and assist police in investigations should a crime occur. (altmanllp.com)
If you can, highlight main points in a bullet point format — it is better than hiding them in the middle of a long paragraphs. (flexjobs.com)
Served as main point of contact between sales, online, editorial, and creative and logistics teams to execute custom programs. (resumemycareer.com)