Definitions of grand:

• noun:   a piano with the strings on a harp-shaped frame; usually supported by 3 legs
• noun:   the cardinal number that is the product of 10 and 100
• adjective:   impressive in scale

  Example: "In the grand manner"

• adjective:   impressive in size or scope
• adjective:   of or befitting a lord
• name:  A surname (rare: 1 in 100000 families; popularity rank in the U.S.: #13773)