1 to exchange

2 exchange

3 communication

4 interaction

5 to have social contact (with sb)

1 to flow

2 to disseminate

3 to circulate or spread

4 to move or drift

5 to degenerate

6 to banish or send into exile

7 stream of water or sth resembling one

8 class, rate or grade

1 to shed tears

1 (of a contagious disease etc) to spread

2 to propagate

3 (of a style of clothing, song etc) popular

4 fashionable

1 flow rate

2 rate

3 throughput

4 site traffic (Internet)

1 with one's face covered in tears (idiom)

1 lit. one strong beat and one weak beats in a measure of music (two beats in the bar) (idiom); fig. follow a prescribed pattern to the letter

2 scrupulous attention to detail

1 lit. one strong beat and three weak beats in a measure of music (four beats in the bar) (idiom); fig. scrupulous attention to detail

1 to see through something at first glance (idiom)

1 to feast one's eyes on (idiom)