Plunger

مترادف و متضاد plunger

1. noun Someone who dives (into water)
   Synonyms: speculator, diver
2. noun Hand tool consisting of a stick with a rubber suction cup at one end; used to clean clogged drains
   Synonyms: plumber's helper
3. noun Mechanical device that has a plunging or thrusting motion
   Synonyms: piston