1. Steadfast in allegiance to one's homeland, government, or sovereign.
2. Faithful to a person, ideal, custom, cause, or duty.
3. Of, relating to, or marked by loyalty. See synonyms at faithful.

[French, from Old French leial, loial, from Latin lēgālis, legal, from lēx, lēg-, law.]

The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.