ˈlean-to noun [countable] a small roughly-made building that is built against the side of a larger building ⇒
shed [TahlilGaran] Dictionary of Contemporary English ▲
lean to n. 1. A shed for tools, such as spades, hoes, etc., attached to the wall of a house,
Joe looked for the garden hose in the lean-to. 2. A small cabin in the country.
They spend their weekends in their modest lean-to in Wisconsin. [TahlilGaran] English Idioms Dictionary ▲