1 classroom

2 classifier: 间 jiān

1 office

2 business premises

3 bureau

4 classifier: 间 jiān

1 lobby

2 lounge

1 waiting room (for train, bus etc)

1 basement

2 cellar

1 to be discontented with one's home

2 to have adulterous relations after marriage (of women) (idiom)

1 lit. to reach the main room and enter the chamber (idiom)

2 fig. to gradually attain proficiency

3 to attain a higher level

1 wielding the halberd within the household (idiom); internecine strife

1 to show the wolf into the house (idiom)

2 to introduce a potential source of trouble

1 to get married (idiom)