Alcove and Summer house

Alcove noun - A freestanding airy structure in a scenic setting (as a park) typically offering commanding views.

Summer house and alcove are semantically related in gazebo topic. In some cases you can use "Summer house" instead a noun "Alcove".

Summer house noun - A country house (usually located in the country) that provides a cool place to live in the summer.

Alcove and summer house are semantically related in gazebo topic. Sometimes you can use "Alcove" instead a noun phrase "Summer house".