Use cautiously and frugally:
— I try to economize my spare time.

synonyms: conserve, economise, husband.

Dutch: besparen, sparen, uitsparen

Spend sparingly, avoid the waste of:
— The less fortunate will have to economize now.

synonyms: economise, save.

Roget 817: be economical etc. adj.; practice economy; economize, save; retrench, cut back expenses, cut expenses; cut one's coat according to one's cloth, make both ends meet, keep within compass, meet one's expenses, pay one's way, pay as you go; husband etc. (lay by) 636.    save money, invest money; put out to interest; provide for a rainy day, save for a rainy day, provide against a rainy day, save against a rainy day; feather one's nest; look after the main chance.    cut costs.    ... show more