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