• agora: In ancient Greece, an open space, often the market place.
• campagna: Open countryside, as depicted, e.g., in the paintings of Claude Lorraine, Nicolas Poussin, and Gaspard Dughet. Such images profoundly affected 18th c. landscape-design in Britain.
• concourse: An open space where several roads or paths meet. 2. An open space for accommodating large crowds in a building, as in a railway terminal.
• glade: Clearing (open space or passage) in a wood or forest, natural or created by cutting down trees, either sunny or providing shade.
• green: An open space or public park in the center of a town or village. 2. A bowling green or putting green. 3. Of or pertaining to concrete or mortar that is freshly set but not completely hardened.
• green belt: Undeveloped agricultural land, forest, hearth-land, wild country, etc., around a town or city, protected to prevent it being developed…
• greenbelt: A boundary or division, of a community, consisting mainly of a belt of trees.
• maidan: Open space in or just outside an Indian or Central Asian town, used for ceremonial occasions, parades, etc. 2. Esplanade. 3. Market-place.
• maydan: Open space in or just outside an Indian or Central Asian town, used for ceremonial occasions, parades, etc. 2. Esplanade. 3. Market-place.
• open space: In urban planning, that portion of a community site given over to roads, parks, and other land not containing the buildings.
• patio: A usually paved and shaded area adjoining or enclosed by the walls of a house; used for outdoor living or entertainment.
• piazza: The Italian word for plaza – and sometimes an American word for porch (particularly in the Midwest).
• plaza: The English (and now American) version of the Italian piazza: an outdoor space contained by different buildings.
• forum: A public square for assembly.
• quadrangle: A square or quadrangular space or court surrounded by a building or buildings, as on a college campus. Also called quad.

Also see Architecture index.