携帯
けいたい · keitai · JLPT N3 · noun
mobile telephone
📱 携帯 = carry + belt: something you keep on you, like your phone
携 means to carry or take along; 帯 is a belt or sash, as in obi. Together they mean something carried at your side. 携帯電話, the carried phone, got shortened to plain 携帯, now the everyday word for a mobile.