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American Heritage® Dictionary of the English Language, Fourth Edition

1. n. The flag of the United States.

Wiktionary

1. n. A nickname for the national flag of the United States of America.
2. n. The national anthem of the United States of America.

GNU Webster's 1913

1. adj. the popular name for the national ensign of the United States; also the name of a poem, the words of which were composed by Francis Scott Key, which was adopted as the national anthem of the United States.

WordNet 3.0

1. n. the national flag of the United States of America