Key and Password

Key

Key noun - Something that allows someone to achieve a desired goal.

Usage example: a good education is the key to success

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Password and key are semantically related in answer topic. In some cases you can use "Password" instead a noun "Key".

Nearby Words: keyed, keyboard, keying

Password noun - A word or phrase that must be spoken by a person in order to pass a guard.

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Key and password are semantically related in secret word given for entry topic. You can use "Key" instead a noun "Password".

old	old key	old password
safe	safe key	safe password
special	special key	special password
normal	normal key	normal password
Other adjectives: specific, right, certain, original, true, correct, proper, single, actual, real, wrong, secret, necessary, unique, final, hidden, extra, last, different.

Devices with physical or digital locks can ideally be used only by the authorized holder of a key or password.

Source: Loyal Phlebotinum
For one, the people who know the password could accidentally hit the wrong key (and they're bound to if they have to type in the password on a regular basis), meaning that eventually they will lock themselves out on accident.

Source: One Password Attempt Ever
Terry racks her brains at which of the lyrics is the password, til she realizes that the key is the key—that is, the musical key of the song.

Source: The Password is Always "Swordfish"

Cite this Source

Password and Key. (2016). Retrieved 2026, August 01, from https://thesaurus.plus/related/key/password

Key & Password. N.p., 2016. Web. 01 Aug. 2026. <https://thesaurus.plus/related/key/password>.

Password or Key. 2016. Accessed August 01, 2026. https://thesaurus.plus/related/key/password.

Google Ngram Viewer shows how "key" and "password" have occurred on timeline