Definition of: valuable

(val′y·ə·bəl, val′yə·bəl) adjective
1. Having financial worth, price, or value; costly.
2. Of a nature or character capable of being valued or estimated: These goods are valuable by money.
3. Having moral worth, value, or importance; very serviceable; worthy; estimable: a valuable friend. See synonyms under EXCELLENT, GOOD, IMPORTANT.
—noun Usually plural An article of value, as a piece of jewelry.
—val′u·a·ble·ness noun
—val′u·a·bly adverb