Simple Definition of nest egg
: an amount of money that is saved over a usually long period of time to pay for something in the future
Full Definition of nest egg
1 : a natural or artificial egg left in a nest especially to induce a hen to continue to lay there
2 : a fund of money accumulated as a reserve
Examples of nest egg
They built up a nest egg for their son's college education.
<paid for the computer out of his nest egg>
First Known Use of nest egg
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