8870 suy suy Korean: 2 NHSK word(s): 衰老* 6 shuai1 lao3to age/ to deteriorate with age/ old and weak 衰退* 6 shuai1 tui4to decline/ to fall/ to drop/ to falter/ a decline/ recession (in economics) KOREAN6000 word(s): KOREAN 2500 New HSK words): KOREAN Sentence(s):