Englisheconomize
verb
they economized by growing their own vegetables:
save (money), cut expenditure, cut costs;
cut back, make cutbacks, make cuts, retrench, husband one's resources, budget, be (more) economical, make economies, be thrifty, be sparing, be frugal, buy (more) cheaply, use less, reduce/decrease wastage, scrimp, scrimp and save, scrimp and scrape, cut corners, tighten one's belt, draw in one's horns, count the/your pennies, watch the/your pennies;
North American pinch the/your pennies;
US, dialect rake and scrape.
▷antonyms spend, be extravagant.
economize Oxford Dictionary of English