The word "im" is an abbreviation commonly used for "instant message," referring to online communication through messaging platforms. There are various synonyms for "im" that are frequently used, such as "chat," "text," "DM," or "direct message." These different terms are used depending on the context and platform where the communication is taking place. For example, "DM" or "direct message" is a popular term used on social media platforms like Twitter and Instagram to signify a private message sent between two users. Similarly, "chat" or "text" are more general terms that can refer to any type of online messaging or communication. Overall, these synonyms for "im" serve as convenient and efficient ways to communicate online.