ワンルームアパート LinksSentence search for ワンルームアパートSentence search for ワン・ルーム・アパートEdit in JMdict Noun1. studio apartment; bed-sitterWasei, word made in Japan, From English “one room apartment”. Wasei (word made in Japan)Other formsワン・ルーム・アパート Discussions Log in to talk about this word.