- June 14, anniversary of the day in 1777 when the U.S. flag was adopted
- [f- d-] in England, any day when people give to some special fund for charity and get small flags in token of their contribution
June 14, observed in the United States in commemoration of the adoption in 1777 of the official US flag.
(plural flag days)
- A day commemorating the adoption of a national flag.