笃信 dǔxìn to sincerely believe Origin Definitions Defs Strokes Stroke Words Sentences Sents dǔxìn to sincerely believe 笃 篤 dǔ sincere (bound form) sincere; genuine; earnest; honest and kind信 xìn verb to profess faith in to have religious faith in; to believe in (a religion)dǔxìn to be trustworthy 笃 篤 dǔ sincere (bound form) sincere; genuine; earnest; honest and kind信 xìn nounadjective trustworthiness trust; confidence; trustworthiness; credit