The phrase "special note" refers to an important message or information that stands out from the rest. It is usually provided to draw attention and emphasize certain details or instructions. Full definition
Here are a few of the common descriptive essay writing mistakes that you want to take special note of so you can avoid making them yourself. (readkaplan.com)
Of special note for families, children are covered at no additional cost! (insuremytrip.com)
What's the problem with making special note of attendance? (religion-online.org)