<p><strong>Verb</strong></p><ul><li>(used with object):<ul><li>over·set, over·set·ting.</li><li>to upset or overturn; overthrow.</li><li>to throw into confusion; disorder physically or mentally.</li><li>to become upset, overturned, or overthrown.</li><li>Printing: (of type or copy) to set in or to excess.</li><li>(of space) to set too much type for.</li></ul></li></ul><p><strong>Noun</strong></p><ul><li>the act or fact of oversetting; upset; overturn.</li><li>Also called overmatter: Printing matter set up in excess of space.</li></ul>