Surveying is the technique and science of determining the terrestrial or three-dimensional positions of points and the distances and angles between them. It is a fundamental part of many disciplines, including:

* Land development: Determining property boundaries, creating maps, and planning construction projects.

* Engineering: Designing roads, bridges, and other infrastructure projects.

* Construction: Setting out buildings and other structures.

* Real estate: Determining property value and area.

* Environmental science: Mapping land use and natural resources.

While surveying is the overall term, the actual measurement of land can be done using various techniques and tools, such as:

* Distance measurements: Using measuring tapes, laser rangefinders, or total stations.

* Angle measurements: Using theodolites, transits, or total stations.

* GPS (Global Positioning System): Determining precise coordinates using satellites.

* Aerial surveying: Using drones or airplanes to capture images and create 3D models of the land.

So, while "surveying" refers to the process of measuring land, it's important to understand that it encompasses a wide range of techniques and tools.