What does "install" mean?
You will learn what install means in plain words.
To install means to set up a new app so you can use it.
Your device adds the app and gets it ready for you.
After it installs, you tap it to open it. Just like your other apps.
For example, you install a game from the app store. Then you can play it.
Buddy says
Installing is usually one tap, then you wait a moment.