The digit 8 on a keycap. It stands for eight, the eighth step, or a lucky number in Chinese culture.
People use 8️⃣ for numbered lists and scores. Chinese speakers use it for luck and wealth, since the word for eight sounds like the word for prosperity.
In Chinese chat, 88 or 8️⃣8️⃣ sounds like 'bye-bye' and works as a casual goodbye.
Facts
Keycap: 8 8️⃣ is an emoji in the symbols category, under keycap. It is one of the early emoji from Japanese phones, standardized in Unicode 6.0 (2010). On GitHub, Slack and other apps you can type it as :eight: or :keycap_8:. People also look for it with words like “8”, “eight”, or “keycap”.
Timeline
2010Added to the emoji standard (Unicode 6.0)
Design history
Google (Noto)
2015
2017
2021
Google Noto Emoji images: Apache 2.0. Twemoji graphics by X Corp and contributors: CC-BY 4.0.