verb, waned, wan⋅ing, noun | 1. | to decrease in strength, intensity, etc.: Daylight waned, and night came on. Her enthusiasm for the cause is waning. |
| 2. | to decline in power, importance, prosperity, etc.: Colonialism began to wane after World War II. |
| 3. | to draw to a close; approach an end: Summer is waning. |
| 4. | (of the moon) to decrease periodically in the extent of its illuminated portion after the full moon. Compare wax 2 (def. 2). |
| 5. | a gradual decrease or decline in strength, intensity, power, etc. |
| 6. | the drawing to a close of life, an era, a period, etc. |
| 7. | the waning of the moon. |
| 8. | a period of waning. |
| 9. | a defect in a plank or board characterized by bark or insufficient wood at a corner or along an edge, due to the curvature of the log. |
| 10. | on the wane, decreasing; diminishing: The popularity of that song is on the wane. |
