wax and wane
The phrase "wax and wane" originates from the lunar cycles, where the moon grows (waxes) and shrinks (wanes) in brightness.
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Definition
B2General
(common, informal)To increase and decrease in a regular, cyclical manner.
Example
- Interest in the band has waxed and waned over the years.
- His enthusiasm for the project waxes and wanes depending on his mood.
Similar
Terms that have similar or relatively close meanings to "wax and wane":
ebb and flowwax poeticwax downwax philosophicalwax wodefade awaycome and go