ONE-HUNDRED-PERCENT Meaning of ONE-HUNDRED-PERCENT in English ˌ ̷ ̷| ̷ ̷ ̷ ̷ ̷ ̷| ̷ ̷ adverb (or adjective) : hundred-percent Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012