The Double Dagger symbol (‡). Copy and paste it, or use its Unicode, HTML, and CSS codes.
More from Punctuation.
The quickest way is to copy ‡ from this page and paste it anywhere. You can also insert it with its Unicode, HTML, or alt code listed above.
‡ is U+2021 (decimal 8225).
Use ‡ in HTML to render ‡ on a web page.
On Windows you can type it with Alt+8225 (hold Alt and enter the number on the numeric keypad).
Yes — copying is completely free and unlimited, and works right in your browser with no sign-up.