What is the meaning of grand?

noun

• The cardinal number that is the product of 10 and 100.
  • synonyms: thousand, one thousand, 1000, M, K, chiliad, G, thou, yard
• A piano with the strings on a horizontal harp-shaped frame; usually supported by three legs.
  • synonyms: grand piano

adjective

• Of behavior that is impressive and ambitious in scale or scope.
  • usage: "an expansive lifestyle"; "in the grand manner"; "collecting on a grand scale"; "heroic undertakings"
  • synonyms: expansive, heroic
• Of or befitting a lord.
  • usage: "heir to a lordly fortune"; "of august lineage"
  • synonyms: august, lordly
• Rich and superior in quality.
  • usage: "a princely sum"; "gilded dining rooms"
  • synonyms: deluxe, gilded, luxurious, opulent, princely, sumptuous
• Extraordinarily good or great; used especially as intensifiers.
  • usage: "a fantastic trip to the Orient"; "the film was fantastic"; "a howling success"; "a marvelous collection of rare books"; "had a rattling conversation about politics"; "a tremendous achievement"
  • synonyms: fantastic, howling, marvelous, marvellous, rattling, terrific, tremendous, wonderful, wondrous
• Of high moral or intellectual value; elevated in nature or style.
  • usage: "an exalted ideal"; "argue in terms of high-flown ideals- Oliver Franks; "a noble and lofty concept"; "a grand purpose"
  • synonyms: exalted, elevated, sublime, high-flown, high-minded, lofty, rarefied, rarified, idealistic, noble-minded
• Large and impressive in physical size or extent.
  • usage: "the bridge is a grand structure"
• The most important and magnificent in adornment.
  • usage: "grand ballroom"; "grand staircase"
• Used of a person's appearance or behavior; befitting an eminent person.
  • usage: "his distinguished bearing"; "the monarch's imposing presence"; "she reigned in magisterial beauty"
  • synonyms: distinguished, imposing, magisterial