Modern Posting is a term used to describe the act of posting content on social media platforms such as Twitter, Facebook, and Instagram. It involves creating content that is relevant to the platform and engaging with users in order to increase visibility and reach. The term 'TWEET' is used to refer to a post made on Twitter, which is a popular microblogging platform. Tweeting is a form of modern posting that allows users to share their thoughts, opinions, and experiences with others in a concise manner.