plummet Synonyms

plumb bob dive drop plump plumb fall tailspin go down drop off take a header come down wane somersault submerge submerse subside swoop topple tumbling tumble leapfrogging skydive tail off somersaulting set square free fall drop down fall off nosedive nose dive plop dive-bomb plumb line belly whop belly flopper belly flop tip over slump slued fell dwindle dives diving dove dip diminish descend depreciate decrease decline