to try to save money by reducing the amount that you are spending節約,節省;緊縮開支
You could economize on food by not eating in restaurants all the time.你要是不總去飯店吃飯,就可以在吃上節省很多。
A lot of companies are trying to economize by not taking on new staff.很多公司爲了盡可能節省開支,都不再僱用新員工。