Noah Webster's New International Dictionary of the English Language

1. (superl.) of relatively great; greatest; chief; principal; as grand mountain; a grand army; a grand mistake.

2. (superl.) Great in size, and fine or imposing in appearance or impression; illustrious, dignified, or noble (said of persons); majestic, splendid, magnificent, or sublime (said of things); as, a grand monarch; a grand lord; a grand general; a grand view; a grand conception.

3. (superl.) Having higher rank or more dignity, size, or importance than other persons or things of the same name; as, a grand lodge; a grand vizier; a grand piano, etc.

4. (superl.) Standing in the second or some more remote degree of parentage or descent; -- generally used in composition; as, grandfather, grandson, grandchild, etc.