plummet
noun
a piece of lead or some other weight attached to a line, used for determining perpendicularity, for sounding, etc.; the bob of a plumb line.
Used to describe an action that was ongoing continuously in the past up until another past event interrupted it.
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
For decades, auto thefts in the US had been plummeting but took a sharp upward turn at the onset of the pandemic.
From BBC ● Jan. 26, 2023