翻牆

翻⫽牆 (verb-object) (intransitive)

1. to scale a wall
2. (neologism) to circumvent Great Firewall of China or (by extension) other censorship of the Internet

   翻牆軟件／翻墙软件  ―  fānqiáng ruǎnjiàn  ―  Internet censorship circumvention software

   • 微信等即時聊天工具、網易郵箱等都必須通過VPN軟件「翻牆」才能使用，造成他們與中國國內交流變得非常困難。 [MSC, trad.]
     微信等即时聊天工具、网易邮箱等都必须通过VPN软件「翻墙」才能使用，造成他们与中国国内交流变得非常困难。 [MSC, simp.]

     From: 2021 January 27, 胡博峰 (Hu Bofeng), 张婷鸽 (Zhang Tingge), 魏辉 (Wei Hui), 《印度要永久封禁59款中国APP》, in Global Times, →ISSN, issue 5276, page 16

     Wēixìn děng jíshí liáotiān gōngjù, Wǎngyì Yóuxiāng děng dōu bìxū tōngguò VPN ruǎnjiàn “fānqiáng” cáinéng shǐyòng, zàochéng tāmen yǔ Zhōngguó guónèi jiāoliú biàndé fēicháng kùnnán. [Pinyin]

     Instant messaging tools like WeChat and services like NetEase Email must be accessed through VPN software, making communication between Indian and Chinese people very difficult.