Word: 激增 (jīzēng) 激增 dictionary entry jīzēng to increase rapidly; to shoot up Full dictionary entry for 激增 Example sentences using 激增 2 sentences, showing page 1 of 1. 夏天游客的人数会激增。 Xiàtiān yóukè de rénshù huì jīzēng. The number of tourists increases rapidly in summer. 放假以后，来这里的游客激增。 Fàngjià yǐhòu, lái zhèlǐ de yóukè jīzēng. After the holiday began, the number of tourists here increased rapidly.