What is an individual Twitter post commonly known as?

An individual Twitter post is commonly referred to as a "tweet." This term specifically describes the messages sent on the platform, which have character limits and can include text, links, images, or videos. Tweets serve as the primary mode of communication on Twitter, allowing users to share information, engage with followers, and participate in discussions.

Other terms like "post," "message," and "update" can describe various types of content on social media or messaging platforms but do not capture the unique nature and specific branding of content shared on Twitter. "Post" is a general term used across many social media sites, while "message" typically refers to private communications. An "update" might imply a status change but isn't specific to Twitter's unique format. Thus, "tweet" is the recognized term that distinctly identifies posts made on Twitter.