The word "signature" refers to a person's name or mark written in a specific way to show that they approve, agree with, or claim something as their own. Full definition
Indeed, a petition demanding the changes set out in the conference motion has, within a few hours, attracted hundreds of signatures of party members. (socialliberal.net)
Newly discovered galaxies would also present scientists with more opportunities to search for signatures of dark matter. (sciencedaily.com)
The goal is to fill up your worksheet with signatures for each and every category. (thoughtco.com)