key · n
key (KEYBOARD)
B2 one of the places that you press with your fingers on a device such as a computer or on a musical instrument to produce letters, numbers, symbols, or produce a sound
Dictionary examples:
piano keys (10.1)
Press the shift key to write in capital letters. (44.9)
key (ANSWERS)
A2 a list of answers to an exercise, quiz, test, etc.
Dictionary examples:
The teacher lost the answer key and had to guess everyone's grades. (0.0)
The answer key was in invisible ink. We all failed the test! (0.0)
My cat shredded the answer key. Now it's a furry puzzle! (0.0)
You can check your answers in the answer key on page 176. (13.4)
key (FOR LOCKS)
A1 a piece of metal cut into a particular shape that is used for opening or closing the lock of a door, starting a car engine, etc.
Dictionary examples:
My dog ate the car key! (0.0)
I use a banana as my car key! (0.0)
The key is bigger than the door! (0.0)
I forgot my key. Can I use yours? (0.0)
The dog ate my homework and keys! (0.0)
I found my keys in the refrigerator! (0.0)
car/door/house keys (32.1)
key (METHOD)
B1 a way of explaining or achieving something
Dictionary examples:
The key to passing exams without studying is having a twin genius brother. (0.0)
The key to never being late is owning 100 alarm clocks. (0.0)
The key to perfect hair is simple: just don't wash it for a year. (0.0)
Hard work is the key to success. (15.3)