plummet
/ˈplʌmɪt/
noun
- A heavy weight attached to a line, used for measuring depth or determining vertical alignment; a plumb line.
- Using a plummet, the builder ensured the wall was perfectly straight.
- The old well was measured with a simple plummet and rope.
- The sailor dropped a plummet to check the depth of the water.
verb
- To fall or drop straight down at high speed.
- The stock market plummeted after the news broke.
- Temperatures plummeted overnight, leaving frost on the ground.
- The rock plummeted into the canyon below.
- To decrease or decline suddenly and sharply.
- The bird's population has plummeted due to habitat loss.
- Her confidence plummeted after the failed presentation.
- Sales plummeted during the economic downturn.
Antonyms