1 variant: 背 bēi

1 to put up

2 to build (scaffolding)

3 to hang (clothes on a pole)

4 to connect

5 to join

6 to arrange in pairs

7 to match

8 to add

9 to throw in (resources)

10 to take (boat, train)

11 variant: 褡 dā

1 to pair up

2 to match

3 to arrange in pairs

4 to add sth into a group

1 to betray

1 rear view

2 figure seen from behind

3 view of the back (of a person or object)

1 arms around each other's shoulders (idiom)

1 even if you build a thousand-league awning for it, every banquet must come to an end (idiom)

1 lit. both the palm and the back of the hand are made of flesh (idiom)

2 fig. to both be of equal importance

3 to value both equally

1 lit. to strangle the front and press the back (idiom)

2 fig. to occupy all key points (military)

1 to abrogate an agreement

2 to break one's oath (idiom)