<p><strong>Noun</strong></p><ul><li>The act of withholding or denying consent to do something.</li><li>A downward slope; declivity.</li><li>A downward movement, such as in prices or population.</li><li>A gradual deterioration of physical powers.</li></ul><p><strong>Verb</strong></p><ul><li>To withhold or deny consent to do something; refuse.</li><li>To express inability or reluctance to accept; refuse with courtesy.</li><li>To cause to slope or incline downward.</li><li>To fail in strength, vigor, character, value, etc.; deteriorate.</li><li>To draw toward the close, as the day.</li></ul>