The * key from a phone keypad. It stands for an asterisk, a footnote, or the star key.
People use *️⃣ to mark a catch or a footnote, like 'terms apply *️⃣', or in phone menu instructions. Some read it as a star and use it for ratings or highlights. It is rare in casual chat.
Facts
Keycap: * *️⃣ is an emoji in the symbols category, under keycap. It became part of the emoji standard in Emoji 2.0, released in 2015. On GitHub, Slack and other apps you can type it as :asterisk: or :keycap_asterisk:. People also look for it with words like “keycap”.
Timeline
2015Added to the emoji standard (Emoji 2.0)
Design history
Google (Noto)
2017
2021
Google Noto Emoji images: Apache 2.0. Twemoji graphics by X Corp and contributors: CC-BY 4.0.