A <a href="https://en.wikipedia.org/wiki/Tick_(check_mark)" class="extiw" title="w:Tick (check mark)">tick</a> ("check" in American English) symbol in a box. Note that the file is redirected by "<a href="//commons.wikimedia.org/wiki/File:%E2%98%91.svg" class="mw-redirect" title="File:☑.svg">☑.svg</a>", which is the Unicode character for the symbol in question (U+2611). If your computer displays something like a question mark or an empty box instead, then you have a font problem. But don't worry. You can still copy and paste either <a href="//commons.wikimedia.org/wiki/File:%E2%98%91.svg" class="mw-redirect" title="File:☑.svg">☑.svg</a> or <a class="mw-selflink selflink">Check mark.svg</a> into an article and it will appear correctly. Don't be deceived by the tiny size of this image. It is fully scalable.
<a href="//commons.wikimedia.org/wiki/User:Erin_Silversmith" title="User:Erin Silversmith">Erin Silversmith</a>
2006-08-16
<span class="int-own-work" lang="en">Own work</span>