Your device cannot show this emoji yet. It still copies, and newer phones will show it.
:ballot_box_with_check::check_box_with_check:U+2611☑\2611"\u{2611}"%E2%98%91%EF%B8%8FA ticked check box, like a completed item on a form or a ballot. It means checked off, selected, or done.
People use ☑️ for to-do lists, survey answers and 'I voted' posts. It looks more like paperwork than ✅, so it suits lists and forms where an empty ◻️ sits on the next line.
Check box with check ☑️ is an emoji in the symbols category, under other symbol. 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 :ballot_box_with_check: or :check_box_with_check:. People also look for it with words like “ballot”, “box”, “check”, or “checked”.
Google (Noto)
2015
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2021Twemoji (X, Discord)
2014
2018Google Noto Emoji images: Apache 2.0. Twemoji graphics by X Corp and contributors: CC-BY 4.0.