Like other abbreviation words such as “FR” (For Real), “Bet” or Facts, FS is the same. All say the same, but the one who says that it is definitely so, is FS, such as when one says, Definitely! An example is that, That is true FR and That is true FS are similar in meaning, whereas FS is a little stronger in conviction. Teenagers use the short form FS when responding quickly to messages, during informal conversations, and playing games or using memes. It is brief, inviting, and contemporary a fine match in the rapid digital interaction. Know more about What Does Fs Mean In Text