lean-to(redirected from Leanto)
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1. a roof that has a single slope with its upper edge adjoining a wall or building
2. a shed or outbuilding with such a roof
A shed or building having a single pitched roof, with its highest end against an adjoining wall or building.
A single-pitched roof whose summit is supported by the wall of a higher structure.
A small extension to a building with a roof (having but one slope) whose supports lean against the building.