信しんずるしんずるCommon wordJLPTN2Freq.FrequencyTop 1,000ConjugationMeanings1zuru verb, transitive verbbelieve; trust; have faith inA somewhat formal or literary alternative to 信じる. Used for believing in a person, statement, or concept.See also: 信じる彼かれの言こと葉ばを信しんずるに足たる。His words are worthy of belief.