verb (used with object), plunged, plung·ing.
verb (used without object), plunged, plung·ing.
Origin of plunge
British Dictionary definitions for take the plunge
- to resolve to do something dangerous or irrevocable
- to get married
Word Origin for plunge
Idioms and Phrases with take the plunge (1 of 2)
take the plunge
Venture something, commit oneself, as in You've been living together for a year, so when are you going to take the plunge and get married? It is also put as make the plunge, plunge alluding to diving in a body of water. [Mid-1800s]
Idioms and Phrases with take the plunge (2 of 2)
see take the plunge.