Economize (verb)

To use resources carefully and not wastefully.

Origin:

Early 18th century: from french économiser, from économie (see economy).

Examples:

1. He tried to economize by turning off the lights when he left a room.
2. We need to economize on our spending.
3. The family economized by cutting back on their expenses.
4. The company decided to economize by reducing staff.
5. It's important to economize resources to ensure they last longer.