✗

Symbol

 * 1) Indicates one's disagreement, as opposed to using the  to state one's agreement or preference. Sometimes, a ballot  can be filled with the X mark:.
 * Select which ice cream flavors you like: (in this example, the surveyee only likes vanilla, among the given options)
 * Chocolate ✗
 * Strawberry ✗
 * 1) Indicates one's preference or vote, as opposed to leaving a blank space or ballot.
 * ☒ Candidate 1
 * ☐ Candidate 2
 * ☐ Candidate 3
 * 1) Indicates incorrectness. See also:.
 * 2+2=4 ✓
 * 2+2=5 ✗
 * 2+2=5 ✗

Usage notes
In English, this is called X mark, or an X-ed out box.