Grand
Part of speech: adjective
Definition: Of large size or extent; great; extensive; hence, relatively great; greatest; chief; principal; as, a grand mountain; a grand army; a grand mistake. 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. 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. Standing in the second or some more remote degree of parentage or descent; -- generally used in composition; as, grandfather, grandson, grandchild, etc.
Part of speech: noun
Definition: One thousand dollars. One thousand pounds sterling.
Example sentence: Three grand essentials to happiness in this life are something to do, something to love, and something to hope for.
Important
Part of speech: adjective
Definition: Having relevant and crucial value.
Example sentence: Always bear in mind that your own resolution to succeed is more important than any other.