/ ˈætɪk; NAmE / noun
a room or space just below the roof of a house, often used for storing things :
furniture stored in the attic
an attic bedroom
—compare garret , loft
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WORD ORIGIN
late 17th cent. (as an architectural term designating a small order above a taller one): from French attique , from Latin Atticus relating to Athens or Attica.