Tall versus high
In many cases, both tall and high can be used. For example, you can say a tall building or a high building. However, there’s a small difference. If you say that something is tall, you’re referring to its actual size: “The window is two metres tall.” [the window measures two metres from its base to the top] But if you use high, you’re referring to its height from the ground. For example: “The window is high on the wall.” [The window is near the roof, not near the ground, for example.]