Word: 蔓延 (mànyán) 蔓延 dictionary entry mànyán to extend; to spread Full dictionary entry for 蔓延 Example sentences using 蔓延 2 sentences, showing page 1 of 1. 一定要阻止谣言继续蔓延！ Yídìng yào zǔzhǐ yáoyán jìxù mànyán! We must stop the rumor from spreading any further! 这些措施可以预防疾病蔓延。 Zhèxiē cuòshī kěyǐ yùfáng jíbìng mànyán. These measures can prevent the disease from spreading.