Word: 塞 (sāi, sè, sài) 塞 dictionary entry sāi to plug; a stopper sè to block sài strategic stronghold Full dictionary entry for 塞 Example sentences using 塞 2 sentences, showing page 1 of 1. 谁和何塞是同学？ Shéi hé hé sāi shì tóngxué? Hesai and who, are classmates? 谁是何塞的同学？ Shéi shì hé sāi de tóngxué? Who is José's classmate?