Are the terms Account and Address in Ethereum used interchangeably? i.e., an Account is an address. An address points to an account

2 Answers 2


In practice, yes.

Within accounts, you have a distinction between internal and external accounts.

Internal accounts are contract accounts.

External accounts are linked to private keys.

In both cases, addresses are used to refer to the accounts.

The Constantinople hardfork will lay the ground for a "all accounts are contract" base, which would eventually allow fees etc. to potentially be paid with tokens.

  • why is there a need to move towards an all account are contract based?
    – Nathan Aw
    Commented Aug 2, 2018 at 3:43
  • You can read about the reasoning here. Commented Aug 2, 2018 at 3:47

Are they used interchangeably in practice?


Should they be?


Do they actually mean the same thing?


An account generally means the thing that has the ETH balance, the thing that you send a transaction from, the thing you deploy a contract from, etc. The account can be "external", aka comprised of a keypair (private key + public key) or it could be a "internal", aka a contract account, which has no private key associated with it and is controlled via other external accounts or simply holds information.

An address is a very specific string that consists of 0x + 40 hexadecimal characters and is used to identify an account.

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