English to English
1. a married man; a woman's partner in marriage
2. The male head of a household; one who orders the economy of a family.
3. use cautiously and frugally
I try to economize my spare time|conserve your energy for the ascent to the summit
4. To direct and manage with frugality; to use or employ to good purpose and the best advantage; to spend, apply, or use, with economy.