| fall headlong(verb, expression, drop, slip, dip) |
| falter(verb, upset, fall, collapse, plunge) |
| flag(verb, drop, decline, settle, ease) |
| flatten(verb, drop, slip, dip, descend) |
| floor(verb, drop, slip, dip, descend) |
| flop(verb, drop, decline, settle, ease) |
| fold up(verb, expression, drop, decline, settle) |
| founder(verb, upset, fall, collapse, plunge) |
| go belly up(verb, expression, idiom, upset, drop) |
| gravitate(verb, drop, decline, settle, ease) |
| hit the deck |
| jumble(verb, drop, slip, dip, plunge) |
| keel(verb, drop, slip, dip, plunge) |
| keel over(verb, expression, upset, drop, decline) |
| knock down(verb, expression, upset, collapse, dip) |
| knock over(verb, expression, drop, fall, dip) |
| land(verb, upset, drop, decline, settle) |
| lapse(verb, drop, decline, settle, ease) |
| lessen(verb, drop, decline, settle, ease) |
| level(verb, drop, slip, dip, descend) |