What does "tiling value" mean in the Unity documentation?

In https://docs.unity3d.com/Manual/SL-PropertiesInPrograms.html it says that

“x contains X tiling value”

What does it mean by “tiling value”? It sounds very vague.

tiling adjusts how large a texture image is displayed on an object.
for example with a standard cube with tiling set to one. the texture image will be streched to fill the face without repeat. When tiling set to two or 3 the texture on the faces will get smaller and start repeating over the cube.

its a vector2 number so the height and width can be adjusted seperatly