Nantoka/보약boyakAdvanced보약 (boyak) is a Korean word meaning “invigorant; tonic”.Meanings1invigorant2tonicPart of speechnounHanja補藥Related words치약toothpaste감기약cold medicine약medicine약국pharmacy약사pharmacist보충supplement보조help보완supplementation후보candidate안약eyewash두통약headache medicine마약illicit drugStudy Korean with flashcards →