From Longman Dictionary of Contemporary Englishtake the plungetake the plungeDECIDEto decide to do something important or risky, especially after thinking about it for a long timeWe took the plunge and set up our own business. →plunge
Examples from the Corpus
take the plunge• Pennsylvania had already taken the plunge into youthapprenticeships before Butler began making his calculations.• And once you do take the plunge, avoid the computer ads for at least a year.• Mrs Scott, picturedabove, first took the plunge in 1993 when she converted a house into two flats.• Forsyth took the plunge into politics in 1996.• But with only five runners declared-and two of those pulled out before racing-she decided to take the plunge.• "Are you two getting married?" "Yes. We've decided to take the plunge."• We've decided to take the plunge and get married.• Ralph and his wife decided to take the plunge into business.• For some years I have been thinking of buying a wordprocessor but have not yet taken the plunge.• Until then, our Buying With Confidencesection on page 66 explains how to protect yourself when you take the plunge.