<p><strong>Noun</strong></p><ul><li>Definition:<ul><li>Work or action to oppose some other work or action.</li></ul></li></ul><p><strong>Verb</strong></p><ul><li>Definition (used without object):<ul><li>To work in opposition.</li></ul></li><li>Definition (used with object):<ul><li>To work in opposition to; hinder or frustrate.</li></ul></li></ul>