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English to English adjective
| 1 |
(of the Moon) pertaining to the period during which the visible surface of the moon decreases |  | Example: after full moon comes the waning moon
source: wordnet30
noun
| 2 |
a gradual decrease in magnitude or extent | | Example: the waning of his enthusiasm was obvious
the waxing and waning of the moon
source: wordnet30
| 3 |
The act or process of waning, or decreasing. | | source: webster1913
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