What is the difference between accounts and adresses? What is the difference between accounts and adresses? As discussed in this question accounts are a component of bitcoin wallets, different from addresses. What are they? How do they work?
A Wallet is a collection of Accounts and Addresses.

An Account is an arbitrary basket of Addresses. Transactions originating from and going into one Account will be kept separate from other Accounts (unless you use a move command, which moves the balances around without creating new transactions).

Address is the only part of this that is visible in the Block Chain.