Any horizontal, molded or otherwise decorated projection which crowns or finishes the part to which it is affixed; as, the cornice of an order, pedestal, door, window, or house.
Though part of him wanted to stand outside in the rain and stare up at the eves and cornices, he rushed into the house with Lindsey.
Alice Sebold. The Lovely Bones, p.235 (2002)
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The palazzo suddenly seemed so obtrusively old and dirty, the spots on the curtains, the cracks in the floors, the broken plaster on the cornices became so disagreeably obvious,
Leo Tolstoy. Anna Karenina (1878)
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He was enchanted by the architecture of the city. Merry amoretti wove garlands above windows. Roguish fauns and naked nymphs peeked down at Billy from festooned cornices.
Kurt Vonnegut. Slaughterhouse-Five (1968)
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After careful soundings made upon the floor of his room, he introduced a lead pipe which penetrated the ceiling of Mon. Imbert's office at a point between the two screeds of the cornice. By means of this pipe, he hoped to see and hear what transpired in the room below.
Maurice Leblanc. The Extraordinary Adventures of Arsene Lupin, Gentleman-Burglar