keys
word · lemma: key
Definition
A key is usually a small object used to open or lock a door, car, or box. It can also mean a button on a keyboard or piano, or the most important part of something.
Usage & Nuances
As a plural noun, 'keys' is very common for physical objects: 'house keys', 'car keys'. It is also common in tech and music: 'press a key', 'piano keys'. In abstract use, 'the key to success' usually appears in the singular, so 'keys' often suggests several important factors: 'the keys to success'.
Example Sentences
I can't find my keys.
basic
The baby touched the piano keys.
basic
These two keys open the front door.
basic
Did you leave your keys on the kitchen table again?
natural
Use the arrow keys to move the picture.
natural
Good communication and trust are the keys to a strong relationship.
natural