[{"Bold_text": "verb (used with object)", "List Items": ["to increase the height ; make higher .", "to increase the degree or amount of; augment:Cézanne's death heightened the value of his paintings.", "to strengthen, deepen, or intensify:to heighten the plot of a story; to heighten one's awareness or appreciation; to heighten one's .", "to bring out the important features of, as in a drawing:to heighten a picture with Chinese white."]}, {"Bold_text": "verb (used without object)", "List Items": ["to become higher .", "to increase:The tension heightened as the enemy forces advanced.", "to brighten or become more intense."]}]