俭用

俭用	jiǎn yòng	to economize; to be frugal
俭	jiǎn	(bound form) frugal; thrifty
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