Password,

Definition of Password:

1. Sequence of characters (letters, numbers, symbols) used as a secret key for accessing a computer system or network. Passwords are used also for authentication, validation, and verification in electronic commerce.

2. A secret word or phrase that must be used to gain admission to something.

Synonyms of Password

Word of identification, Sign, Signal, Word

How to use Password in a sentence?

1. If you dont know the password you cant come in.