信子 Traditional form: 信子 Pinyin (reading): xìnzi Definitions: variant of 芯子 (xìnzi) Characters: 信 - to trust, to believe; letter, sign 子 - son, child; seed, egg; fruit; small thing Traditional characters: 信 - to trust, to believe; letter, sign 子 - son, child; seed, egg; fruit; small thing