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