オンリーワン LinksSentence search for オンリーワンSentence search for オンリー・ワンEdit in JMdict Noun, Noun which may take the genitive case particle 'no'1. only one (person, thing); sole; uniqueNoun which may take the genitive case particle 'no'2. highest; best; most outstandingNoun which may take the genitive case particle 'no'3. custom-madeWikipedia definition4. The Only OneOther formsオンリー・ワン Discussions Log in to talk about this word.