✔ 最佳答案
It is a noun
eg. I take the shortcut home= I take a way that required short time to reach home
eg. There is no shortcut to learn a language = There is no easier way to learn a language
Sometime, you will hear words that you can never find in a dictionary. Like in HK, some movie stars may make up some words that go with their characters. You will not be able to find those words neither.