寒蝉hán chána cicada in cold weather (used as a metaphor for sb who keeps their thoughts to themself); Meimuna opalifera, a kind of cicada found in East Asia
蝉联chán liánto continue in a post; (to hold a post) several times in succession; (to win a title) in successive years; to stay at number one; to defend a championship
蝉蜕chán tuìcicada slough; fig. to free oneself; to extricate oneself from
寒蝉效应hán chán xiào yìngthe chilling effect of a climate of fear in which people are afraid to speak their mind
螳螂捕蝉táng láng bǔ chánthe mantis stalks the cicada, unaware of the oriole behind (idiom, from Daoist classic Zhuangzi 庄子); to pursue a narrow gain while neglecting a greater danger
金蝉脱壳jīn chán tuō qiàolit. the cicada sheds its carapace (idiom); fig. to vanish leaving an empty shell; a crafty escape plan