grand

adjective

• 1magnificent and imposing in appearance, size, or style:a grand country house the dinner party was very grand
• (of a person) of high rank and with an appearance and manner appropriate to it:she was such a grand lady
• large or ambitious in scope or scale:his grand design for the future of Europe collecting on a grand scale
• used in names of places or buildings to suggest size or splendor:the Grand Canyon the Grand Hotel

• 2 [attributive] denoting the largest or most important item of its kind:the grand entrance
• of the highest rank (used especially in official titles):the grand duke
• Law (of a crime) serious:grand theftCompare with petty (sense 2).

• 3 informal very good or enjoyable; excellent:we had a grand day

• 4 [in combination] (in names of family relationships) denoting one generation removed in ascent or descent:a grand-niece

noun

• 1 (plural same) informal a thousand dollars or pounds:he gets thirty-five grand a year

• 2a grand piano.