a nest egg

nest egg

An allotment of money that is set aside for the future. With the cost of living these days, it is difficult for young couples to build a nest egg and save for retirement.
See also: egg, nest
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

a nest egg

COMMON A nest egg is a sum of money that you are saving for a particular purpose. All he wanted was a few months decent money to help him retire. He thought this was his last chance to build a nest egg. She left, and with her nest egg of $5,000, started the company.
See also: egg, nest
Collins COBUILD Idioms Dictionary, 3rd ed. © HarperCollins Publishers 2012

a ˈnest egg

(informal) a sum of money saved for the future: She has a nice little nest egg which she intends to use for travelling round the world one day.A nest egg was an egg left in a nest to encourage a chicken to continue to produce more eggs.
See also: egg, nest
Farlex Partner Idioms Dictionary © Farlex 2017
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