❗ · Symbols › Punctuation · Emoji 0.6 (2010)
❗ is a bold red exclamation mark.
It adds urgency or emphasis: important news, excitement, 'read this'. It's a louder way to end a sentence, and a few in a row means it's really important.
Paint with ❗ in the emoji art editor, or turn any photo into emojis with the image to emoji converter.
U+2757❗\2757\u{2757}\U00002757%E2%9D%97← ❕ White Exclamation Mark · 〰️ Wavy Dash → · Symbol emoji library