| Answer | Crossword Clue |
|---|---|
| rev | to increase in strength or accelerate sharply |
| upswing | An increase in strength or quantity; an upward trend |
| upswings | An increase in strength or quantity; an upward trend |
| upsurge | An upward surge in the strength or quantity of something; an increase |
| upsurges | An upward surge in the strength or quantity of something; an increase |
| potentiation | The increase in strength of nerve impulses along pathways that have been used previously, either short-term or long-term |
