WordReference Random House Unabridged Dictionary of American English © 2020
A-frame  frām′),USA pronunciation n. 
  1. Buildingany upright, rigid supporting frame in the form of a triangle or an invertedV,asV.
  2. Building, Architecturea building constructed principally of such a frame, with a steep gabled roof resting directly on a foundation.
  • 1960–65

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