"Seen" is a term often used to indicate that something has been observed or noticed. In the context of social media, it refers to a feature that shows when a message has been read by the recipient. This can be found in various messaging apps like WhatsApp and Facebook Messenger, where users can see if their messages have been acknowledged. The concept of "seen" can also apply to visual art and performance, where it describes the act of perceiving or experiencing a piece. In this sense, "seen" emphasizes the importance of audience engagement and interpretation, highlighting how different viewers may have unique reactions to the same work.