Definition of valuable

• a. - Having value or worth; possessing qualities which are useful and esteemed; precious; costly; as, a valuable horse; valuable land; a valuable cargo.
• a. - Worthy; estimable; deserving esteem; as, a valuable friend; a valuable companion.
• n. - A precious possession; a thing of value, especially a small thing, as an article of jewelry; -- used mostly in the plural.