A password, sometimes called a passcode, is secret data and is typically a string of characters, usually used to confirm a user's identity. Traditionally, passwords were expected to be memorized, but due to the large number of password-protected services that a typical individual accesses, this can make memorization of unique passwords for each service (nearly) impractical.
Using the terminology of the US-based NIST Digital Identity Guidelines, the secret is held by a party called the claimant
