On Instagram, CF stands for "Close Friends". It is a feature that allows users to create a private list of followers with whom they can share specific stories and posts. Only the users on the close friends list can see the content shared with them. This feature is useful for sharing more personal content with a select group of people, such as close friends or family members, while keeping it separate from the content shared with all followers. Users can add or remove people from their CF list anytime they want, and Instagram does not determine the list. The CF feature is customizable and can be used to share memes, inside jokes, funny content, or updates about events with a select group of people. The exact origin of the CF acronym remains unclear, but it reflects a social movement to form deeper bonds in todays digital world.