Meaning & Definition of word "Key"

Key

/kiː/

1. A small metal instrument that is used to open or close a lock.
- Example: He took out his key and unlocked the door.
2. A solution or means of achieving a desired result.
- Example: Education is the key to success.
3. A significant or crucial piece of information or concept.
- Example: The report provided several keys to understanding the complex situation.

1. To insert a key into a lock to operate it.
- Example: She keyed the lock to gain entry.

1. Of great importance or crucial.
- Example: The manager played a key role in the project’s success.

●From Old English 'cāg', of Germanic origin; related to Dutch 'key' and German 'Schlüssel'.

key player:

An important person in a situation.

key issue:

A primary concern or topic.

key to success:

An essential element required for achieving success.

key result area:

A specific area where results are important in a business context.

lock:

A device for securing something, typically operated with a key.

code:

A system of symbols used for communication or enciphering.

important:

Of great significance or value.

Meaning: Something that is essential or highly regarded.

● Example Sentence: That new policy is key for our growth.

Meaning: To secure or control something tightly.

● Example Sentence: We need to key the project down to ensure success.