The Collaborative International Dictionary of English v.0.48:
Economize \E*con"o*mize\ ([-e]*k[o^]n"[-o]*m[imac]z), v. t.
[imp. & p. p. Economized ([-e]*k[o^]n"[-o]*m[imac]zd); p.
pr. & vb. n. Economizing.] [Cf. F. ['e]conomiser.]
To manage with economy; to use with prudence; to expend with
frugality; as, to economize one's income. [Written also
Expenses in the city were to be economized. --Jowett
Calculating how to economize time. --W. Irving.
Moby Thesaurus II by Grady Ward, 1.0:
36 Moby Thesaurus words for "economizing":
Scotch, canny, careful, chary, cheeseparing, conserving, cooling,
cooling down, cooling off, curtailment, cutback, economic,
economization, forehanded, frugal, labor-saving, low growth rate,
money-saving, parsimonious, penny-wise, provident, prudent,
prudential, reduction of expenses, reduction of spending,
retrenchment, saving, scraping, scrimping, skimping, slowdown,
spare, sparing, thrifty, time-saving, unwasteful