Pronunciation: (loi'ul), [key]
1. faithful to one's sovereign, government, or state: a loyal subject.
2. faithful to one's oath, commitments, or obligations: to be loyal to a vow.
3. faithful to any leader, party, or cause, or to any person or thing conceived as deserving fidelity: a loyal friend.
4. characterized by or showing faithfulness to commitments, vows, allegiance, obligations, etc.: loyal conduct.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.