The idioms with overall significance in the United States are those that have deeply embedded cultural meanings and are widely recognized across different social groups. These idioms often reflect American values, history, and everyday life. One such example is "break the ice," which signifies initiating a conversation in a new or awkward situation. This idiom is significant because it embodies the American value of sociability and the importance of communication.

The significance of idioms like "break the ice" can be attributed to their role in shaping American culture. According to a study by the University of California, Los Angeles (UCLA), idioms are a crucial part of language that helps in conveying complex meanings in a concise manner. They are not just linguistic units but also cultural artifacts that reflect the values and norms of a society. The widespread use of idioms in daily communication highlights their importance in American culture.

Moreover, idioms often carry historical and regional influences. For instance, the idiom "hit the nail on the head" has its roots in the blacksmithing tradition, where hitting the nail precisely on its head was essential for effective work. This idiom signifies pinpointing the exact problem or solution, reflecting the American work ethic and practicality. Another example is "the ball is in your court," which is rooted in the game of tennis, symbolizing the responsibility or opportunity that lies with the person being addressed.

Data from the American Dialect Society's annual "Word of the Year" competition further underscores the significance of idioms. Over the years, idioms such as "bail me out," "fake news," and "cancel culture" have been recognized for their cultural impact. These idioms reflect current events, social movements, and the evolving language landscape in the United States.

In conclusion, idioms with overall significance in the United States are those that embody cultural values, historical traditions, and reflect the dynamic nature of American society. Their widespread use in daily communication highlights their importance in shaping the cultural fabric of the nation.