the loyalty that citizens owe to their country (or subjects to their sovereign)
the act of binding yourself (intellectually or emotionally) to a course of action
- Pledge allegiance to the national flag.
- The knight swore an oath of allegiance to the king.
- I pledge allegiance to the flag of the United States of America, and to the republic for which it stands, one nation under God, indivisible, with liberty and justice for all.