激增 jīzēng to increase rapidly
to increase rapidly; to shoot up
How to remember 激增: 激 excite + 增 increase = to increase rapidly.
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How it is used
- To surge/shoot up sharply in number - 用户数量激增 (yònghù shùliàng jīzēng) the number of users skyrocketed.
- Register: news/statistics; stronger and more sudden than 增加 (zēngjiā, to increase).
- Opposite is 骤减 (zhòujiǎn) or 锐减 (ruìjiǎn, to plummet) - 人口锐减 (rénkǒu ruìjiǎn) the population plummets.