say it: VA-lyuh-buhl
valuable is an adjective and noun meaning "having great material or monetary value especially for use or exchange". It carries 3 recorded senses.
having great material or monetary value especially for use or exchange
“a valuable diamond”
having worth or merit or value
“a valuable friend”
“a good and worthful man”
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for valuable come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.