yǎn jìn
evolution
gradual forward progress
yán jǐn
rigorous
strict
careful
cautious
compact
well-knit
Yán jīn
Yanjin county in Zhaotong 昭通[Zhao1 tong1], Yunnan
Yán jīn
Yanjin county in Xinxiang 新鄉|新乡[Xin1 xiang1], Henan
Sī mǎ Yán
Sima Yan (236-290), founding emperor of Jin dynasty 晋 after the Three Kingdoms period, reigned 265-290 as Emperor Wu of Jin 晉武帝