Yarmulka, or kepa (Hebrew כִּיפָּה‎, “kippa”, plural “kipot”; Yiddish: יאַרמלקע "Yarmolke") - a traditional Jewish human headdress. However, the word yarmulka itself has a broader meaning and means a small round cap that not only Jews can wear. You can run around or under the rain. The yarmulka is attached to the hair with a hairpin.