Answer:
The "OK" hand symbol means "all right" or fine in the United States, but is considered an insult in parts of Europe.
Explanation:
Barrier in cross-cultural communication refers to the type of hindrance that occurs when a certain type of behavior or communication method is generally accepted in one certain culture but completely unacceptable if carried out in different culture.
OK signal is a good example for this. In united states, we interpret the ok signal as 'all right' , but if we do it in some part of Europe they will interpret it as sexual act revolving one's anus.