ばんぜん 万全 Common word Show 1 collocation 万全を期す - to make absolutely sure LinksSentence search for 万全Sentence search for ばんぜんKanji details for 万 and 全Edit in JMdict Noun, Noun which may take the genitive case particle 'no', Na-adjective (keiyodoshi)1. perfection; flawlessness Discussions Log in to talk about this word.