1. The full name of the United States in English is the United States of America.
2. "US" is an abbreviation for "United States" and is commonly used both domestically and internationally.
3. "USA" is a commonly used abbreviation for the United States of America, although "US" is more widely recognized in formal contexts.
4. While "USA" is not as universally adopted as "US," it is frequently used in sports events as the shorthand name for the country.
5. The International Olympic Committee and the majority of international sports governing bodies adhere to ISO standards, which specify the use of official country abbreviations.
