nest egg

English Thesaurus

1. device consisting of an artificial egg left in a nest to induce hens to lay their eggs in it (noun.artifact)

hypernym	:	device,
definition	:	an instrumentality invented for a particular purpose (noun.artifact)

2. a fund of money put by as a reserve (noun.possession)

hypernym	:	fund, monetary fund,
definition	:	a reserve of money set aside for some purpose (noun.possession)

derivation	:	lay aside, save, save up,
definition	:	accumulate money for future use (verb.possession)

derivation	:	lay aside, save, save up,
definition	:	accumulate money for future use (verb.possession)