| 1. | to increase the height of; make higher. |
| 2. | to increase the degree or amount of; augment: Cézanne's death heightened the value of his paintings. |
| 3. | to strengthen, deepen, or intensify: to heighten the plot of a story; to heighten one's awareness or appreciation; to heighten one's suffering. |
| 4. | to bring out the important features of, as in a drawing: to heighten a picture with Chinese white. |
| 5. | to become higher. |
| 6. | to increase: The tension heightened as the enemy forces advanced. |
| 7. | to brighten or become more intense. |