| conk |
| contract(verb, drop, decline, reduce, moderate) |
| croak |
| curtail(verb, decline, reduce, moderate, lower) |
| cut(verb, decline, reduce, moderate, lower) |
| decamp(verb, go, withdraw, leave, abandon) |
| decease |
| degenerate(verb, diminish, decrease, weaken, lessen) |
| deliquesce(verb, decline, fall, fail, diminish) |
| depreciate(verb, decline, reduce, moderate, lower) |
| die on vine(verb, expression, idiom, decline, fall) |
| dim(verb, decline, reduce, fall, fail) |
| dispel |
| do a fade-out(expression, idiom) |
| drain(verb, drop, close, end, decline) |
| draw to a close(verb, expression, idiom, decline, reduce) |
| drop(verb, decline, reduce, fall, diminish) |
| drop dead |
| ease(verb, lessen, pause, slacken) |
| ease off(verb, expression, phrasal verb, decline, fall) |