コストダウン LinksSentence search for コストダウンSentence search for コスト・ダウンEdit in JMdict Noun, Suru verb, Transitive verb, Intransitive verb1. cost reduction; reduction in costs; cost-cuttingWasei, word made in Japan, From English “cost down”. Wasei (word made in Japan)Other formsコスト・ダウン Discussions Log in to talk about this word.