The quality that renders something desirable, useful, or valuable: the worth of higher education. Material or market value: stocks having a worth of ten million dollars. A quantity of something that may be purchased for a specified sum or by a specified means: ten dollars' worth of natural gas; wanted their money's worth. Wealth; riches: her net worth. Quality that commands esteem or respect; merit: a person of great worth. Equal in value to something specified: worth its weight in gold. Deserving of; meriting: a proposal not worth consideration. Having wealth or riches amounting to: a person worth millions. for all (one) is worth To the utmost of one's powers or ability. for what it's worth Even though it may not be important or valuable: Here's my advice, for what it's worth. Archaic To befall; betide: "Howl ye, Woe worth the day!\u201d ( Ezekiel 30:2).