1 surname Ou

1 difference

2 to distinguish

3 to discriminate

4 to make a distinction

5 classifier: 个 gè

1 local

2 regional

3 district (not necessarily formal administrative unit)

4 region

5 area

6 as suffix to city name, means prefecture or county (area administered by a prefecture-level city or county level city)

7 classifier: 个 gè

1 liar's dice (dice game)

1 secret code

2 ciphertext

3 password

4 PIN

1 to talk shop all the time (idiom)

1 Don't ask and you won't be told any lies. (idiom)

1 not saying anything further (idiom); not raising any objection

2 without demur

1 to speak honestly (idiom)

1 meteor shower and violent thunderclaps (idiom); omens of violent development

2 portentous signs