1. tools with rubber cups on handles used to clear blocked drains or toilets
2. people who dive or jump suddenly into water
3. mechanical parts that move up and down in cylinders
Usage: technical

Examples

• The janitor kept several plungers in the supply closet.
• We needed two plungers to fix the clogged toilet.
• The polar bear plungers jumped into the icy lake on New Year’s Day.
• Brave plungers dove from the high cliff into the ocean below.
• The engine’s plungers moved rapidly inside the cylinders.
• The coffee maker’s plungers pressed the grounds to extract flavor.