| degenerate(verb, drop, decline, reduce) |
| slack off(verb, expression, phrasal verb, drop) |
| deteriorate(verb, drop, decline, hurt) |
| fall(noun, verb, drop, decline) |
| peter out(expression, drop, decline, reduce) |
| run low(expression, drop, decline, reduce) |
| contract(verb, drop, decline, reduce) |
| crumble(verb, drop, quiet, decline) |
| lower(verb, drop, quiet, decline) |
| tail off(expression, drop, decline, reduce) |
| waste(verb, drop, decline, reduce) |
| weaken(verb, drop, decline, reduce) |
| wear away(expression, drop, decline, reduce) |
| calm down(expression, drop, decline, reduce) |
| check(verb, drop, quiet, decline) |
| curb(verb, drop, quiet, decline) |
| curtail(verb, drop, decline, reduce) |
| cut down(expression, drop, decline, reduce) |
| depreciate(verb, drop, quiet, decline) |
| devaluate(verb, drop, quiet, decline) |