Cases of word usage

1) (of a disease) spreading by contact (contagious)

2) a blow (that reaches a target); violent contact that causes damage; (of a performance, actor, new model, record etc) success (because liked by the audience, buyers etc) (hit)

3) not allowed to contact other people, e.g. when under house arrest (incommunicado)

4) a severe mental disorder in which a person loses contact with reality (psychosis)

5) (to cause a person, thing) to come into contact with another; to produce an emotion in (a person) (touch)