BTW stands for By The Way, a casual phrase to add extra information or change the topic in a conversation. Learn how to pronounce, use, and avoid common mistakes with this abbreviation in texting, emails, and social media. BTW stands for "by the way." It's used to insert a new idea into a conversation or to bring something up (like a reminder). It can also be used to change the subject of a discussion quickly. Even compared to other slang terms, BTW is one of the most popular acronyms on the internet. What does BTW mean and stand for? In this lesson, you will learn the definition, other meanings and conversation examples of the acronym “BTW” in English. BTW Meaning What Does … What Does Btw Mean? The acronym BTW stands for “by the way.” It is commonly used in texting and online messaging to add an additional piece of information to a conversation. Whether you want to change the subject or simply provide an extra detail, BTW is a convenient way to do so. It can be used at the beginning or end of a sentence and is often seen in emails and on social media platforms. Some people even pronounce it as “BT-dubs,” with the “dubs” representing the “W.” So ...