What is the difference between an old friend and an old friend?

The meaning is different. The difference between old friends and old friends is that they have different meanings. An old friend refers to someone who has had a certain degree of communication in the past. His personal relationship is ok and his emotional foundation is not bad, but he lost contact and communication with them for various reasons. An old man refers to a person who has given up continuing to associate, who has decided not to have any connection with the present, and also refers to a person who has decided not to associate.