敗 落 bài luò : decline (in wealth and position)

璧 還 bì huán : return (a borrowed object) with thanks; decline (a gift) with thanks

璧 謝 bì xiè : decline (a gift) with thanks

不 置 可 否 bù zhì kě fǒu : decline to comment; not express an opinion; be noncommittal; hedge

辭 [辞] cí : bid farewell; diction; resign; say goodbye; take leave; decline

Big5: , Unicode: 8fad (辭),
Links: MT, Cantonese, Ld, Chinese Language

拒 絕 jù jué : to refuse; to decline; to reject

卻 [却] què : but; yet; however; while; to go back; to decline; to retreat; nevertheless

Big5: , Unicode: 537b (卻),
Links: MT, Cantonese, Ld, Chinese Language

衰 shuāi : decay; decline

Big5: , Unicode: 8870 (衰),
Links: MT, Cantonese, Ld, Chinese Language

衰 退 shuāi tuì : decline; fall; drop; falter

推 辭 tuī cí : to decline (an appointment, invitation, etc.)

退 tuì : retreat; to decline; to move back; to withdraw

Big5: , Unicode: 9000 (退),
Links: MT, Cantonese, Ld, Chinese Language

下 «丅» xià : under; second (of two parts); next (week, etc.); lower; below; underneath; down(wards); to decline; to go down; latter

Big5: , Unicode: 4e0b (下),
Links: MT, Cantonese, Ld, Chinese Language

下 降 xià jiàng : to decline; to drop; to fall; to go down; to decrease

昃 zè : afternoon; decline

Big5: , Unicode: 6603 (昃),
Links: MT, Cantonese, Ld, Chinese Language