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Ok Taecyeon. 玉泽演 Yu Ze Yan. 泽Ze could be from 恩泽EnZe which means to benefit from, or 光泽GuangZe which means to shine. While 演Yan literally means to perform, like 演员YanYuan which means actor, or 演戏YanXi which is to act. AKA HIS NAME MEANS TO SHINE FROM THE PERFORMING
AND ANOTHER THING. His surname is pretty unique, just like its unique in Korean too! It means Jade, which is so pretty hehe
Jang Wooyoung. 张佑荣Zhang You Rong. 佑You comes from 保佑BaoYou which is to be blessed/protected (usually from the Heavens), while 荣Rong could be from 光荣GuangRong (glory/honour) or the idioms 欣欣向荣XinXinXiangRong which means to thrive or 引以为荣YinYiWeiRong which-
-is to be proud of someone/an accomplishment. IN OTHER WORDS. Wooyoung’s mandarin name could mean someone who is blessed with glory/great fortune to thrive in life 
Lee Junho. 李俊昊 Li Jun Hao. 俊Jun, like I said for Minjun, could mean 俊秀JunXiu which means talented or 英俊YingJun which means handsome, and 昊Hao means a vastness of something. LEE JUNHO LITERALLY MEANS A VASTNESS OF TALENT/HANDSOMENESS SKSSHDHS BUT WHERE IS THE LIE
Hwang Chansung. 黄灿盛 Huang Can Sheng. The 灿Can likely comes from 灿烂CanLan which is to be joyous/to have a brilliance, while 盛Sheng is an abundance of. So, Hwang Chansung in mandarin literally is an abundance of joy/brilliance brb gonna go CRY 
brb gonna go CRY
Aaaaand THAT IS ALL. THANK YOU FOR COMING TO MY TED TALK I HOPE THIS WAS SOMEWHAT INTERESTING FOR YALL, I HAD A LOT OF FUN EXPLAINING THIS HEHE 
EDIT: Wooyoung's mandarin name is 张祐荣 not 张佑荣, however the meaning is the same as the 祐You could stand for 祐助YouZhu which also means to be divinely helped/blessed 
thanks @MsNoTime2 for pointing out my error!! 
thanks @MsNoTime2 for pointing out my error!!
