wax and wane
Increase and decrease, as in size, number, strength, or intensity, as in Enrollments in these programs wax and wane from year to year. This expression alludes to the phases of the moon, with its periodic changes in size. It was first recorded in the 1300s.
| an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle. |
| a chattering or flighty, light-headed person. |
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