to fall from a high level or position
Prices have plummeted.
de English_dictionary 5 janvier 2013
when a person jumps from a height of minimum 2 stories
Levi told Jeff to plummet when he broke the overhead in chem. class.
de the Chemistry kid 6 mai 2004
to fall really fast straight down
susie just plummeted off that building and is laying in a bloody mass over there
de SN 4 août 2003