塞子 Traditional form: 塞子 Pinyin (reading): sāizi Definitions: cork plug Characters: 塞 - to stop up, to seal, to cork, to block; pass, frontier; fortress 子 - son, child; seed, egg; fruit; small thing Traditional characters: 塞 - to stop up, to seal, to cork, to block; pass, frontier; fortress 子 - son, child; seed, egg; fruit; small thing