say it: vah-luhn-TER-uh-lee
voluntarily is an adverb meaning "out of your own free will". It is pronounced /ˌvɑlənˈtɛɹəli/ — vah-luhn-TER-uh-lee. It carries one recorded sense.
Definitions, synonyms and semantic relations for voluntarily 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.