1 variant: 恩 ēn

1 to be grateful

1 clique

2 school

3 group

4 faction

5 to dispatch

6 to send

7 to assign

8 to appoint

9 pi (Greek letter Ππ)

10 the circular ratio pi = 3.1415926

11 (loanword) pie

1 local police station

1 party (loanword)

1 harsh and merciless (idiom)

1 to forget favors and violate justice (idiom); ingratitude to a friend

2 to kick a benefactor in the teeth

1 your favor amounts to being given a new lease on life (idiom)

1 to employ both kindness and severity (idiom)

1 to bite the hand that feeds one (idiom)