| declension(drop, decline, fall, plunge, slide) |
| declination(drop, decline, fall, plunge, slide) |
| decline(noun, drop, fall, plunge, slide) |
| declivity(drop, fall, plunge, slide, dive) |
| deflation |
| dip |
| downfall |
| downgrade(drop, decline, fall, plunge, slide) |
| droop(drop, decline, fall, plunge, slide) |
| drop(noun, fall, plunge, slide, dive) |
| drop-off(noun, drop, decline, fall, collapse) |
| error(noun, failure) |
| fall-off(noun, stoop, ebb, refluence, subsiding) |
| falling(drop, decline, fall, plunge, descent) |
| fiasco(noun, failure) |
| gimlet |
| grade(drop, decline, fall, plunge, slide) |
| gradient(drop, decline, fall, plunge, slide) |
| header(drop, decline, fall, plunge, slide) |
| hill(drop, fall, plunge, slide, dive) |