contact/ 'kɔntækt /

1.noun [c/u] 
(communication) 联络

2.noun [u] 
(touch) 接触

3.noun [c] 
(person) 熟人

4.vt.
联系

to be in contact with sb
与某人有联络
to come into contact with sb/sth
与某人/某事有接触
to make contact (with sb)
(和某人)取得联络
to lose contact (with sb)
(与某人)失去联系