效用

效用	xiào yòng	usefulness / effectiveness / (economics) utility
效	xiào	variant of 效
效	xiào	to imitate (variant of 效)
效	xiào	variant of 效
效	xiào	effect / efficacy / to imitate
用	yòng	to use; to make use of; to employ / (coverb) with; using / to need; to have to (usu. used in the negative or in questions) / usefulness; utility / (bound form) expense; outlay / (courteous) to eat; to drink / (literary) hence; therefore