Gazebo and Pergola

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

Pergola and gazebo are semantically related in arbour topic. In some cases you can use "Pergola" instead a noun "Gazebo".

Pergola noun - A framework that supports climbing plants.

Gazebo and pergola are semantically related in bower topic. You can use "Gazebo" instead a noun "Pergola", if it concerns topics such as arbour.