Key - Meaning, Definition & English Examples
A key is a small metal object used to open or lock doors, containers, or devices. It can also refer to something essential or central, like the key to solving a problem.
Definition:
A small metal instrument used to open locks or operate mechanisms.
Synonyms:
crucial, essential, pivotal, fundamental, main
Part of Speech:
noun, adjective
Antonyms:
unimportant, trivial, insignificant
Common Collocations:
key role, key factor, key issue, key player, key element
Derivatives:
keyless, keychain, keyboard
Usage Tips:
Use "key" as a noun for physical objects or as an adjective to describe something essential or central.
Common Phrases:
under lock and key, the key to success, hold the key
Etymology:
Derived from Old English "cǣg," meaning a device for opening locks or fastenings.
Examples:
- 1. She lost the key to her house yesterday.
- 2. The teacher explained the key points of the lesson clearly.
- 3. He played a key role in organizing the event.
- 4. The detective found a mysterious key at the crime scene.