The ☪ meaning is Star and Crescent. The emoji is also known as the symbol of Islam. Through the purple square, which is used as a background, the actual star and crescent is shown in white. Incidentally, this purple square has not been used in older emoji versions. Meanwhile, it is used in many emoji symbols to make the actual symbol more visible. The star and crescent can also be found on the flags of some countries. The ☪ meaning is pretty clear. You can always use emoji in conjunction with Islam. This emoji was added to Unicode 1.1 in 1993 and added to Emoji 1.0 in 2015.