plunge

Synonyms: belly flop descent dive duck dunk fall high dive immersion investment jump nose-dive spree submergence submersion swoop venture

Antonyms: ascent increase rise

Synonyms: belly-flop career cast charge dash descend dip drive drop duck fling go down go the limit go whole hog hurtle immerge immerse jump keel lunge lurch nose-dive pitch plummet plunk propel rush shoot the works sink sound submerge submerse swoop take a flyer take a header tear throw throw oneself thrust topple tumble

Antonyms: ascend increase rise