reserve fund

Only a small part of this money could be kept as a reserve fund, as we now owed two weeks' board.

There is much comfort and gladness in the possession of a small reserve fund.

This, and about $40 saved in the six weeks of earning $10, were her reserve fund in the long dull season.

Its nice to unearth a reserve fund of silk stockings under a sofa pillow.

And if you do not require much outlay, you have, I should suppose, a reserve fund to which to put your money.