1 different

2 distinct

3 not the same

4 not alike

1 population

2 people

1 (used in given names)

2 variant: 同 tóng

1 entrance

2 to import

1 common

2 joint

3 jointly

4 together

5 collaborative

1 to shed tears of sympathy (idiom)

1 to treat everyone equally favorably (idiom); not to discriminate between people

1 (idiom) reluctant to speak about it

2 tight-lipped

1 three horses at the same trough (idiom, alluding to Sima Yi 司馬懿|司马懿[Sī mǎ Yì] and his two sons); conspirators under the same roof

1 lit. mustn't speak of two things on the same day (idiom); not to be mentioned in the same breath

2 incomparable