adj

• (in particular, of alcohol) Stronger than typical. (Derived from the name of Russian Imperial stout, a strong dark beer.)
  "Imperial pale ale, Imperial IPA, Imperial pilsner, Imperial milk stout, Imperial lager, Imperial mead"

noun

• (paper, printing) A writing paper size measuring 30 × 22 inches, or printing paper measuring 32 × 22 inches.
• (card games, uncountable) A card game differing from piquet in some minor details, and in having a trump.
• (card games, countable) Any of several combinations of cards which score in this game.
• (historical) An outside or roof seat on a diligence or carriage.
  "...and she was just in time to see Mr. Boyne Sillery hand her aunt into a carriage, jump in himself, when it drove off with a rapidity which scarcely allowed her to observe that a large imperial was on the top, and her aunt's servant, with a huge bandbox, on the dickey."

adj

• (history) Clipping of Imperial Japanese.
  "For quotations using this term, see Citations:Imperial."