1 variant: 恩 ēn

1 to be grateful

1 to fail (a course)

1 universal

2 encyclopedic

3 abbr. for 百科全書|百科全书[bǎi kē quán shū]

1 branch of study

2 administrative section

3 division

4 field

5 branch

6 stage directions

7 family (taxonomy)

8 rules

9 laws

10 to mete out (punishment)

11 to levy (taxes etc)

12 to fine sb

13 classifier: 个 gè

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)