| Answer | Crossword Clue |
|---|---|
| creeps | Increase slowly but steadily in number or amount |
| creeping | Increase slowly but steadily in number or amount |
| propagated | Cause (something) to increase in number or amount |
| propagating | Cause (something) to increase in number or amount |
| propagates | Cause (something) to increase in number or amount |
| leveling | Increase or reduce the amount, number, or quantity of something in order to remove a disparity |
| levelling | Increase or reduce the amount, number, or quantity of something in order to remove a disparity |
