*️⃣ Button

This is a ""key, which is usually formed by overlapping three straight lines. The formed symbol looks like six petals. Therefore, the emoji can be used not only to refer specifically to multiplication symbols in mathematics; It can also be used to indicate that it is used before the annotation of the article, or to correct a certain language disorder; Sometimes it can also indicate the omission of some contents.

It should be noted that in Facebook and OpenMoji platforms, black and gray background pictures are depicted respectively; The background pictures of other platforms are all blue, but the depth is different. Different from others, the symbols displayed on Google, Samsung, Microsoft and Facebook platforms are like five petals, while the patterns displayed on other platforms are like six petals. In addition, except for the OpenMoji platform, the symbols are displayed in black, while the symbols of other platforms are displayed in white.