alight be found be met with be realized befall betide cascade cataract collapse come come about come in come off come to pass come true crash crash-land decline degenerate descend deteriorate dip down ditch down downwind drop drop down drop off eventuate fall fall down fall off go down go downhill go off go to pot gravitate hap happen have a comedown hit rock bottom land level off light lose altitude occur overshoot pancake parachute pass pass off pitch plummet plunge pounce pour down precipitate rain reach the depths settle down sink slip stoop swoop take place talk down touch bottom touch down transpire trend downward upwind