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 wax2 (def 2). noun
5. a gradual decrease or decl
"dollars can be wane."
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