Oh, hold up there! These are actually three different things:

1. "Bitcoin Wallet": This is like your personal bank account for Bitcoin. It's where you store your bitcoins and it's protected by a secret key that only you should know.

2. "Bitcoin Ledger/Blockchain": Both of these terms refer to the record of all Bitcoin transactions ever made. It's a public list that anyone can view, but no one can change past entries.

So in simple terms: Your wallet is where you keep your bitcoins, and the ledger or blockchain is where everyone keeps track of all bitcoin transactions ever made!