A saved address you reach by name instead of by searching. For banking especially, a bookmark you made yourself cannot be faked the way a search result can.
The drawing that proves the sentence above. It is the same card that is in the book.
Think of it as
the ribbon in the book.
For example
You save your bank yourself and always open it from that saved link. Nobody can put a fake one in your own list.
This is one card out of 275.
The hundred words you meet most are free — the whole set, animated, in one file that works with no internet.
Volume 1 has all 275 in fifteen chapters, with Staying Safe the largest chapter on purpose.