key

word

/ˈki/
kee
/kˈiː/
kee

Definition

A 'key' is a small object used to open locks. It can also mean something very important, the answer to a problem, or a button on a keyboard.

Usage & Nuances

'Key' has many meanings: physical object for locks, important part ('key point'), solution ('key to success'), or computer button. Common phrases: 'key role', 'key player', 'the key to'. In music, 'key' means the scale. Choose meaning by context.

Example Sentences

I can't find my key for the front door.

basic

Press this key to turn on the computer.

basic

The key to success is hard work.

basic

She lost her car keys again; that's the third time this week!

natural

Communication is key if you want a strong relationship.

natural

He played the song in a different key to suit his voice.

natural