grand

Concise Oxford English Dictionary © 2008 Oxford University Press:
grand/ɡrand/

▶adjective

• 1 magnificent and imposing.

  ■ large, ambitious, or impressive in scope or scale.

  ■ dignified, noble, or proud.

• 2 of chief importance.

  ■ of the highest rank (used especially in official titles).

  ■ Law (of a crime) serious.

  Compare with petty (in sense 3).

• 3 informal excellent.

• 4 [in combination] (in names of family relationships) denoting one generation removed in ascent or descent.

▶noun

• 1 (pl. same) informal a thousand dollars or pounds.

• 2 a grand piano.

– derivatives
grandly adverb,
grandness noun.

– origin ME: from OFr. grant, grand, from L. grandis ‘full-grown, great’.