say it: PLUHN-jur
plunger is a noun meaning "someone who risks losses for the possibility of considerable gains". It carries 4 recorded senses.
someone who risks losses for the possibility of considerable gains
hand tool consisting of a stick with a rubber suction cup at one end; used to clean clogged drains
mechanical device that has a plunging or thrusting motion
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for plunger come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.