| erode |
| etiolate(verb, quiet, decline, fall, fail) |
| evanesce(verb, decline, fall, fail, diminish) |
| evanish(verb, decline, fall, fail, diminish) |
| evaporate(verb, decline, fall, fail, diminish) |
| fade away(expression, break, decline, fail, diminish) |
| fag out(verb, expression, quiet, decline, fall) |
| fail(verb, decline, fall, diminish, weaken) |
| fall away |
| fall off |
| fall to pieces(expression, idiom, break, collapse, split) |
| federate(join, stick, combine, dissolve, adhere) |
| flag(verb, quiet, decline, fall, fail) |
| flow(verb, drop, go, pass, warm) |
| fluidify(verb, run, soften, dissolve, melt) |
| fluidize |
| fold(verb, quiet, decline, fall, fail) |
| go(verb, drop, pass, flow, soften) |
| go soft(verb, expression, drop, go, pass) |
| heat(soften, dissolve, thaw, liquefaction) |