mnemonic device

A mnemonic device is a way of remembering things. It's like a shortcut for your memory. Imagine you have to remember a list of grocery items so you don't forget something when you go to the store. You could make a mnemonic device by making a sentence out of the first letter of each item. For example, if you want to remember milk, eggs, apples, and oranges, your sentence might be "MJEAN - My Jellyfish Enjoyed Apples and Oranges". So the next time you go to the store, you can remember the sentence and know exactly what you need to buy.